# Supplementary Material (ESI) for Chemical Communications # This journal is © The Royal Society of Chemistry 2004 data_global _journal_coden_Cambridge 182 loop_ _publ_author_name 'Holger Braunschweig' ; Giovanni d'Andola ; 'Tom Welton' A.J.P.White _publ_contact_author_name 'ProfD Holger Braunschweig' _publ_contact_author_address ; Inorganic Chemistry University of Wurzburg Am Hubland Wurzburg D-97074 GERMANY ; _publ_contact_author_email H.BRAUNSCHWEIG@MAIL.UNI-WUERZBURG.DE _publ_requested_journal 'Chemical Communications' _publ_section_title ; Novel organocycloborates via Grignard reagents ; data_Compound_3 _database_code_depnum_ccdc_archive 'CCDC 236834' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety ? _chemical_formula_sum 'C72 H140 B2 Mg O10' _chemical_formula_weight 1211.77 loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0181 0.0091 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' B B 0.0090 0.0039 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Mg Mg 0.1719 0.1771 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' _symmetry_cell_setting Monoclinic _symmetry_space_group_name_H-M P2(1)/n loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x+1/2, y+1/2, -z+1/2' '-x, -y, -z' 'x-1/2, -y-1/2, z-1/2' _cell_length_a 13.8628(19) _cell_length_b 17.177(3) _cell_length_c 15.580(2) _cell_angle_alpha 90.00 _cell_angle_beta 96.390(11) _cell_angle_gamma 90.00 _cell_volume 3686.9(9) _cell_formula_units_Z 2 _cell_measurement_temperature 203(2) _cell_measurement_reflns_used 30 _cell_measurement_theta_min 7.22 _cell_measurement_theta_max 26.20 _exptl_crystal_description plates _exptl_crystal_colour Colourless _exptl_crystal_size_max 0.83 _exptl_crystal_size_mid 0.77 _exptl_crystal_size_min 0.20 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.092 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 1348 _exptl_absorpt_coefficient_mu 0.613 _exptl_absorpt_correction_type 'Lamina [1 0 1]' _exptl_absorpt_correction_T_min 0.6721 _exptl_absorpt_correction_T_max 0.9664 _exptl_absorpt_process_details ? _exptl_special_details ; ? ; _diffrn_ambient_temperature 203(2) _diffrn_radiation_wavelength 1.54178 _diffrn_radiation_type CuK\a _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_monochromator graphite _diffrn_measurement_device_type 'Bruker P4/RA' _diffrn_measurement_method '\w scans' _diffrn_detector_area_resol_mean ? _diffrn_standards_number 3 _diffrn_standards_interval_count 97 _diffrn_standards_interval_time ? _diffrn_standards_decay_% ? _diffrn_reflns_number 5165 _diffrn_reflns_av_R_equivalents 0.0528 _diffrn_reflns_av_sigmaI/netI 0.0374 _diffrn_reflns_limit_h_min 0 _diffrn_reflns_limit_h_max 15 _diffrn_reflns_limit_k_min -19 _diffrn_reflns_limit_k_max 0 _diffrn_reflns_limit_l_min -17 _diffrn_reflns_limit_l_max 17 _diffrn_reflns_theta_min 3.84 _diffrn_reflns_theta_max 60.01 _reflns_number_total 4964 _reflns_number_gt 3417 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'Bruker XSCANS' _computing_cell_refinement 'Bruker XSCANS' _computing_data_reduction 'Bruker SHELXTL' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1990)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_molecular_graphics 'Bruker SHELXTL' _computing_publication_material 'Bruker SHELXTL' _refine_special_details ; Refinement of F^2^ against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F^2^, conventional R-factors R are based on F, with F set to zero for negative F^2^. The threshold expression of F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F^2^ are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. ; _refine_ls_structure_factor_coef Fsqd _refine_ls_matrix_type full _refine_ls_weighting_scheme calc _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.1404P)^2^+0.7017P] where P=(Fo^2^+2Fc^2^)/3' _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _atom_sites_solution_hydrogens geom _refine_ls_hydrogen_treatment mixed _refine_ls_extinction_method SHELXL _refine_ls_extinction_coef 0.0002(3) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_number_reflns 4964 _refine_ls_number_parameters 426 _refine_ls_number_restraints 522 _refine_ls_R_factor_all 0.1036 _refine_ls_R_factor_gt 0.0734 _refine_ls_wR_factor_ref 0.2240 _refine_ls_wR_factor_gt 0.2036 _refine_ls_goodness_of_fit_ref 1.055 _refine_ls_restrained_S_all 1.050 _refine_ls_shift/su_max 0.001 _refine_ls_shift/su_mean 0.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_occupancy _atom_site_symmetry_multiplicity _atom_site_calc_flag _atom_site_refinement_flags _atom_site_disorder_assembly _atom_site_disorder_group B B 0.5161(3) 0.1737(2) 0.2982(3) 0.0419(9) Uani 1 1 d . . . C1 C 0.5690(3) 0.1325(2) 0.3879(2) 0.0485(8) Uani 1 1 d . . . H1A H 0.5205 0.1176 0.4261 0.058 Uiso 1 1 calc R . . H1B H 0.6053 0.0859 0.3742 0.058 Uiso 1 1 calc R . . C2 C 0.6376(3) 0.1945(2) 0.4305(3) 0.0595(10) Uani 1 1 d . . . H2A H 0.6025 0.2306 0.4647 0.071 Uiso 1 1 calc R . . H2B H 0.6904 0.1704 0.4685 0.071 Uiso 1 1 calc R . . C3 C 0.6770(3) 0.2368(2) 0.3562(3) 0.0575(10) Uani 1 1 d . . . H3A H 0.7250 0.2047 0.3309 0.069 Uiso 1 1 calc R . . H3B H 0.7073 0.2862 0.3757 0.069 Uiso 1 1 calc R . . C4 C 0.5875(3) 0.2510(2) 0.2905(2) 0.0469(8) Uani 1 1 d . . . H4A H 0.6064 0.2555 0.2319 0.056 Uiso 1 1 calc R . . H4B H 0.5540 0.2988 0.3044 0.056 Uiso 1 1 calc R . . C5 C 0.5167(2) 0.11586(19) 0.2133(2) 0.0420(8) Uani 1 1 d . . . H5A H 0.4864 0.1457 0.1630 0.050 Uiso 1 1 calc R . . C6 C 0.6181(3) 0.0928(2) 0.1921(2) 0.0502(8) Uani 1 1 d . . . H6A H 0.6548 0.1403 0.1828 0.060 Uiso 1 1 calc R . . H6B H 0.6519 0.0657 0.2421 0.060 Uiso 1 1 calc R . . C7 C 0.6182(3) 0.0411(2) 0.1134(3) 0.0570(9) Uani 1 1 d . . . H7A H 0.5915 0.0700 0.0619 0.068 Uiso 1 1 calc R . . H7B H 0.6851 0.0265 0.1060 0.068 Uiso 1 1 calc R . . C8 C 0.5590(4) -0.0313(3) 0.1219(3) 0.0700(12) Uani 1 1 d . . . H8A H 0.5901 -0.0634 0.1690 0.084 Uiso 1 1 calc R . . H8B H 0.5564 -0.0616 0.0684 0.084 Uiso 1 1 calc R . . C9 C 0.4567(4) -0.0109(3) 0.1398(3) 0.0689(12) Uani 1 1 d . . . H9A H 0.4228 0.0150 0.0891 0.083 Uiso 1 1 calc R . . H9B H 0.4214 -0.0589 0.1499 0.083 Uiso 1 1 calc R . . C10 C 0.4566(3) 0.0418(2) 0.2177(3) 0.0583(10) Uani 1 1 d . . . H10A H 0.4816 0.0126 0.2694 0.070 Uiso 1 1 calc R . . H10B H 0.3894 0.0565 0.2240 0.070 Uiso 1 1 calc R . . C11 C 0.4030(3) 0.1992(2) 0.3105(2) 0.0474(8) Uani 1 1 d . . . H11A H 0.3684 0.1503 0.3210 0.057 Uiso 1 1 calc R . . C12 C 0.3469(3) 0.2365(2) 0.2310(3) 0.0569(10) Uani 1 1 d . . . H12A H 0.3789 0.2853 0.2180 0.068 Uiso 1 1 calc R . . H12B H 0.3491 0.2016 0.1815 0.068 Uiso 1 1 calc R . . C13 C 0.2415(3) 0.2533(3) 0.2428(3) 0.0751(13) Uani 1 1 d . . . H13A H 0.2104 0.2792 0.1909 0.090 Uiso 1 1 calc R . . H13B H 0.2075 0.2040 0.2494 0.090 Uiso 1 1 calc R . . C14 C 0.2322(4) 0.3033(3) 0.3193(3) 0.0817(15) Uani 1 1 d . . . H14A H 0.1635 0.3087 0.3276 0.098 Uiso 1 1 calc R . . H14B H 0.2578 0.3552 0.3093 0.098 Uiso 1 1 calc R . . C15 C 0.2868(4) 0.2686(3) 0.3995(3) 0.0794(14) Uani 1 1 d . . . H15A H 0.2548 0.2203 0.4142 0.095 Uiso 1 1 calc R . . H15B H 0.2846 0.3050 0.4477 0.095 Uiso 1 1 calc R . . C16 C 0.3920(3) 0.2514(3) 0.3878(3) 0.0635(11) Uani 1 1 d . . . H16A H 0.4231 0.2262 0.4402 0.076 Uiso 1 1 calc R . . H16B H 0.4260 0.3006 0.3806 0.076 Uiso 1 1 calc R . . Mg Mg 0.0000 0.0000 0.5000 0.0287(3) Uani 1 2 d S . . O20 O 0.13462(15) -0.00103(12) 0.44955(13) 0.0360(5) Uani 1 1 d . . . C21 C 0.2304(2) 0.0013(2) 0.5000(3) 0.0480(8) Uani 1 1 d . . . H21A H 0.2390 -0.0439 0.5385 0.058 Uiso 1 1 calc R . . H21B H 0.2373 0.0487 0.5351 0.058 Uiso 1 1 calc R . . C22 C 0.3040(3) 0.0001(3) 0.4365(3) 0.0684(12) Uani 1 1 d . . . H22A H 0.3267 0.0529 0.4256 0.082 Uiso 1 1 calc R . . H22B H 0.3600 -0.0321 0.4577 0.082 Uiso 1 1 calc R . . C23 C 0.2524(3) -0.0331(3) 0.3587(3) 0.0768(14) Uani 1 1 d . . . H23A H 0.2563 -0.0901 0.3602 0.092 Uiso 1 1 calc R . . H23B H 0.2800 -0.0144 0.3073 0.092 Uiso 1 1 calc R . . C24 C 0.1492(3) -0.0069(3) 0.3576(2) 0.0561(10) Uani 1 1 d . . . H24A H 0.1392 0.0437 0.3288 0.067 Uiso 1 1 calc R . . H24B H 0.1045 -0.0449 0.3279 0.067 Uiso 1 1 calc R . . O25 O -0.07240(16) -0.00166(12) 0.37505(13) 0.0381(5) Uani 1 1 d . . . C26 C -0.1040(3) -0.0720(2) 0.3262(2) 0.0472(8) Uani 1 1 d . . . H26A H -0.1421 -0.1057 0.3605 0.057 Uiso 1 1 calc R . . H26B H -0.0479 -0.1014 0.3107 0.057 Uiso 1 1 calc R . . C27 C -0.1646(3) -0.0442(2) 0.2472(3) 0.0642(11) Uani 1 1 d . . . H27A H -0.2330 -0.0400 0.2571 0.077 Uiso 1 1 calc R . . H27B H -0.1592 -0.0792 0.1983 0.077 Uiso 1 1 calc R . . C28 C -0.1218(3) 0.0358(3) 0.2313(2) 0.0582(10) Uani 1 1 d . . . H28A H -0.0638 0.0314 0.2010 0.070 Uiso 1 1 calc R . . H28B H -0.1694 0.0692 0.1977 0.070 Uiso 1 1 calc R . . C29 C -0.0975(3) 0.0661(2) 0.3202(2) 0.0562(10) Uani 1 1 d . . . H29A H -0.0425 0.1021 0.3224 0.067 Uiso 1 1 calc R . . H29B H -0.1531 0.0936 0.3394 0.067 Uiso 1 1 calc R . . O30 O 0.00021(15) 0.12297(11) 0.49730(14) 0.0368(5) Uani 1 1 d . . . C31 C -0.0781(3) 0.1728(2) 0.5204(3) 0.0541(9) Uani 1 1 d . . . H31A H -0.0786 0.1743 0.5833 0.065 Uiso 1 1 calc R . . H31B H -0.1411 0.1534 0.4942 0.065 Uiso 1 1 calc R . . C32 C -0.0589(3) 0.2516(2) 0.4869(3) 0.0552(9) Uani 1 1 d . . . H32A H -0.0846 0.2923 0.5221 0.066 Uiso 1 1 calc R . . H32B H -0.0873 0.2576 0.4268 0.066 Uiso 1 1 calc R . . C33 C 0.0505(3) 0.2541(2) 0.4942(3) 0.0686(12) Uani 1 1 d . . . H33A H 0.0730 0.2920 0.4539 0.082 Uiso 1 1 calc R . . H33B H 0.0779 0.2674 0.5531 0.082 Uiso 1 1 calc R . . C34 C 0.0773(3) 0.17326(19) 0.4714(2) 0.0461(8) Uani 1 1 d . . . H34A H 0.0814 0.1689 0.4092 0.055 Uiso 1 1 calc R . . H34B H 0.1402 0.1588 0.5023 0.055 Uiso 1 1 calc R . . O40 O 0.3190(3) 0.1621(3) 0.6103(4) 0.0738(13) Uani 0.70 1 d PDU A 1 C41 C 0.3349(6) 0.2353(5) 0.6510(6) 0.094(3) Uani 0.70 1 d PDU A 1 H41A H 0.2828 0.2466 0.6869 0.113 Uiso 0.70 1 calc PR A 1 H41B H 0.3358 0.2765 0.6076 0.113 Uiso 0.70 1 calc PR A 1 C42 C 0.4311(6) 0.2316(5) 0.7061(5) 0.103(3) Uani 0.70 1 d PDU A 1 H42A H 0.4651 0.2817 0.7065 0.124 Uiso 0.70 1 calc PR A 1 H42B H 0.4229 0.2168 0.7656 0.124 Uiso 0.70 1 calc PR A 1 C43 C 0.4844(5) 0.1704(6) 0.6628(9) 0.090(4) Uani 0.70 1 d PDU A 1 H43A H 0.5250 0.1938 0.6220 0.108 Uiso 0.70 1 calc PR A 1 H43B H 0.5258 0.1398 0.7053 0.108 Uiso 0.70 1 calc PR A 1 C44 C 0.4087(5) 0.1213(5) 0.6172(7) 0.064(2) Uani 0.70 1 d PDU A 1 H44A H 0.4258 0.1086 0.5595 0.077 Uiso 0.70 1 calc PR A 1 H44B H 0.4030 0.0726 0.6490 0.077 Uiso 0.70 1 calc PR A 1 O40' O 0.3289(12) 0.1388(9) 0.6456(10) 0.098(5) Uiso 0.30 1 d PDU B 2 C41' C 0.3406(12) 0.2129(10) 0.6886(13) 0.089(6) Uiso 0.30 1 d PDU B 2 H41C H 0.3439 0.2059 0.7513 0.106 Uiso 0.30 1 calc PR B 2 H41D H 0.2854 0.2469 0.6699 0.106 Uiso 0.30 1 calc PR B 2 C42' C 0.4325(13) 0.2481(9) 0.6653(15) 0.093(6) Uiso 0.30 1 d PDU B 2 H42C H 0.4203 0.2829 0.6155 0.111 Uiso 0.30 1 calc PR B 2 H42D H 0.4662 0.2771 0.7140 0.111 Uiso 0.30 1 calc PR B 2 C43' C 0.4891(10) 0.1782(13) 0.6441(18) 0.061(6) Uiso 0.30 1 d PDU B 2 H43C H 0.5392 0.1916 0.6070 0.073 Uiso 0.30 1 calc PR B 2 H43D H 0.5192 0.1523 0.6963 0.073 Uiso 0.30 1 calc PR B 2 C44' C 0.4112(16) 0.1294(13) 0.5975(16) 0.076(8) Uiso 0.30 1 d PDU B 2 H44C H 0.3957 0.1473 0.5379 0.091 Uiso 0.30 1 calc PR B 2 H44D H 0.4313 0.0747 0.5968 0.091 Uiso 0.30 1 calc PR B 2 O50 O 0.0996(7) 0.0664(5) 0.1424(4) 0.106(2) Uani 0.60 1 d PDU C 1 C51 C 0.1142(12) -0.0096(6) 0.1101(7) 0.123(4) Uani 0.60 1 d PDU C 1 H51A H 0.0519 -0.0366 0.0987 0.148 Uiso 0.60 1 calc PR C 1 H51B H 0.1559 -0.0397 0.1529 0.148 Uiso 0.60 1 calc PR C 1 C52 C 0.1602(11) -0.0026(7) 0.0301(7) 0.123(4) Uani 0.60 1 d PDU C 1 H52A H 0.1316 -0.0395 -0.0135 0.148 Uiso 0.60 1 calc PR C 1 H52B H 0.2301 -0.0124 0.0408 0.148 Uiso 0.60 1 calc PR C 1 C53 C 0.1411(14) 0.0781(8) 0.0016(7) 0.145(5) Uani 0.60 1 d PDU C 1 H53A H 0.2023 0.1061 -0.0010 0.174 Uiso 0.60 1 calc PR C 1 H53B H 0.1044 0.0789 -0.0559 0.174 Uiso 0.60 1 calc PR C 1 C54 C 0.0846(13) 0.1145(7) 0.0652(8) 0.151(5) Uani 0.60 1 d PDU C 1 H54A H 0.1072 0.1677 0.0778 0.182 Uiso 0.60 1 calc PR C 1 H54B H 0.0156 0.1162 0.0432 0.182 Uiso 0.60 1 calc PR C 1 O50' O 0.2023(11) 0.0868(10) 0.0337(10) 0.141(5) Uiso 0.40 1 d PDU D 2 C51' C 0.1332(17) 0.1290(9) 0.0787(17) 0.167(9) Uiso 0.40 1 d PDU D 2 H51C H 0.0974 0.1669 0.0403 0.200 Uiso 0.40 1 calc PR D 2 H51D H 0.1659 0.1566 0.1288 0.200 Uiso 0.40 1 calc PR D 2 C52' C 0.0656(11) 0.0675(12) 0.1069(14) 0.107(6) Uiso 0.40 1 d PDU D 2 H52C H 0.0279 0.0861 0.1524 0.128 Uiso 0.40 1 calc PR D 2 H52D H 0.0219 0.0468 0.0585 0.128 Uiso 0.40 1 calc PR D 2 C53' C 0.1417(15) 0.0106(13) 0.1397(12) 0.130(7) Uiso 0.40 1 d PDU D 2 H53C H 0.1802 0.0295 0.1922 0.156 Uiso 0.40 1 calc PR D 2 H53D H 0.1137 -0.0402 0.1512 0.156 Uiso 0.40 1 calc PR D 2 C54' C 0.1999(18) 0.0074(11) 0.0655(17) 0.175(9) Uiso 0.40 1 d PDU D 2 H54C H 0.2657 -0.0114 0.0840 0.211 Uiso 0.40 1 calc PR D 2 H54D H 0.1695 -0.0274 0.0205 0.211 Uiso 0.40 1 calc PR D 2 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_23 _atom_site_aniso_U_13 _atom_site_aniso_U_12 B 0.0380(19) 0.0374(19) 0.050(2) 0.0142(16) 0.0038(15) 0.0044(15) C1 0.053(2) 0.0460(19) 0.0465(19) 0.0119(16) 0.0074(15) 0.0083(16) C2 0.056(2) 0.060(2) 0.060(2) 0.0007(19) -0.0068(17) 0.0146(18) C3 0.0446(19) 0.050(2) 0.077(3) -0.0046(19) 0.0027(18) -0.0025(17) C4 0.0459(18) 0.0393(17) 0.057(2) 0.0065(15) 0.0123(15) 0.0008(15) C5 0.0398(17) 0.0402(17) 0.0456(18) 0.0138(14) 0.0028(13) 0.0018(14) C6 0.0452(19) 0.0490(19) 0.056(2) -0.0034(16) 0.0034(15) 0.0027(16) C7 0.057(2) 0.057(2) 0.056(2) -0.0062(18) 0.0028(17) 0.0098(18) C8 0.092(3) 0.050(2) 0.065(3) -0.0089(19) -0.004(2) 0.004(2) C9 0.081(3) 0.053(2) 0.069(3) -0.001(2) -0.005(2) -0.021(2) C10 0.059(2) 0.052(2) 0.063(2) 0.0091(19) 0.0064(17) -0.0115(18) C11 0.0463(19) 0.0450(19) 0.052(2) 0.0184(16) 0.0105(15) 0.0059(15) C12 0.053(2) 0.062(2) 0.056(2) 0.0173(18) 0.0045(17) 0.0159(18) C13 0.054(2) 0.084(3) 0.086(3) 0.016(3) 0.002(2) 0.025(2) C14 0.062(3) 0.097(4) 0.088(3) 0.020(3) 0.015(2) 0.041(3) C15 0.072(3) 0.093(4) 0.078(3) 0.018(3) 0.031(2) 0.028(3) C16 0.061(2) 0.075(3) 0.056(2) 0.015(2) 0.0159(18) 0.022(2) Mg 0.0308(7) 0.0252(7) 0.0298(7) -0.0023(5) 0.0022(5) -0.0015(5) O20 0.0337(11) 0.0407(11) 0.0343(11) -0.0039(9) 0.0069(8) -0.0017(9) C21 0.0273(15) 0.053(2) 0.063(2) -0.0012(17) 0.0025(14) -0.0004(14) C22 0.040(2) 0.090(3) 0.078(3) 0.020(2) 0.0144(18) 0.004(2) C23 0.061(3) 0.101(4) 0.073(3) -0.026(3) 0.032(2) -0.009(2) C24 0.054(2) 0.079(3) 0.0382(18) -0.0041(18) 0.0148(15) -0.0038(19) O25 0.0465(12) 0.0319(11) 0.0346(11) -0.0044(9) -0.0022(9) -0.0018(9) C26 0.054(2) 0.0419(18) 0.0427(18) -0.0121(15) -0.0068(15) -0.0059(15) C27 0.075(3) 0.054(2) 0.057(2) -0.0100(19) -0.022(2) 0.003(2) C28 0.059(2) 0.077(3) 0.0365(18) 0.0093(18) -0.0014(15) 0.003(2) C29 0.081(3) 0.0399(19) 0.0432(19) 0.0067(15) -0.0106(18) -0.0041(18) O30 0.0404(11) 0.0266(10) 0.0441(12) -0.0025(9) 0.0082(9) -0.0028(9) C31 0.054(2) 0.0382(18) 0.074(3) 0.0010(17) 0.0241(18) 0.0090(16) C32 0.063(2) 0.0354(18) 0.067(2) 0.0010(17) 0.0068(18) 0.0075(17) C33 0.068(3) 0.0366(19) 0.104(4) 0.000(2) 0.024(2) -0.0085(19) C34 0.0504(19) 0.0350(17) 0.054(2) -0.0003(15) 0.0125(15) -0.0110(14) O40 0.049(2) 0.071(3) 0.098(4) -0.008(3) -0.007(2) -0.006(2) C41 0.093(6) 0.096(6) 0.093(6) -0.015(5) 0.009(4) 0.019(5) C42 0.142(8) 0.096(6) 0.069(5) -0.010(5) -0.002(5) -0.032(6) C43 0.079(5) 0.087(6) 0.098(8) 0.013(6) -0.017(4) -0.022(4) C44 0.066(4) 0.063(4) 0.062(5) 0.004(4) 0.002(3) -0.008(3) O50 0.138(6) 0.124(6) 0.062(4) 0.006(4) 0.040(4) 0.007(5) C51 0.161(10) 0.131(9) 0.079(7) 0.024(7) 0.017(7) 0.002(8) C52 0.122(8) 0.153(10) 0.099(7) -0.025(7) 0.028(7) 0.014(8) C53 0.221(12) 0.142(10) 0.082(7) 0.005(7) 0.061(8) -0.042(10) C54 0.220(13) 0.095(8) 0.136(10) 0.012(8) 0.007(10) -0.012(9) _geom_special_details ; All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. ; loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_site_symmetry_2 _geom_bond_publ_flag B C5 1.655(5) . ? B C11 1.659(5) . ? B C1 1.663(5) . ? B C4 1.668(5) . ? C1 C2 1.530(6) . ? C2 C3 1.519(6) . ? C3 C4 1.538(5) . ? C5 C10 1.526(5) . ? C5 C6 1.532(5) . ? C6 C7 1.515(5) . ? C7 C8 1.503(6) . ? C8 C9 1.517(7) . ? C9 C10 1.515(6) . ? C11 C16 1.522(6) . ? C11 C12 1.528(5) . ? C12 C13 1.520(6) . ? C13 C14 1.487(7) . ? C14 C15 1.509(7) . ? C15 C16 1.520(6) . ? Mg O25 2.089(2) 3_556 ? Mg O25 2.089(2) . ? Mg O20 2.104(2) 3_556 ? Mg O20 2.104(2) . ? Mg O30 2.113(2) 3_556 ? Mg O30 2.113(2) . ? O20 C21 1.466(4) . ? O20 C24 1.472(4) . ? C21 C22 1.498(5) . ? C22 C23 1.454(7) . ? C23 C24 1.499(6) . ? O25 C29 1.462(4) . ? O25 C26 1.469(4) . ? C26 C27 1.490(5) . ? C27 C28 1.528(6) . ? C28 C29 1.483(5) . ? O30 C31 1.459(4) . ? O30 C34 1.466(4) . ? C31 C32 1.485(5) . ? C32 C33 1.509(6) . ? C33 C34 1.490(5) . ? O40 C41 1.415(7) . ? O40 C44 1.420(7) . ? C41 C42 1.506(8) . ? C42 C43 1.489(8) . ? C43 C44 1.466(7) . ? O40' C41' 1.440(9) . ? O40' C44' 1.442(9) . ? C41' C42' 1.492(9) . ? C42' C43' 1.491(10) . ? C43' C44' 1.490(10) . ? O50 C51 1.422(8) . ? O50 C54 1.455(8) . ? C51 C52 1.467(8) . ? C52 C53 1.470(9) . ? C53 C54 1.469(9) . ? O50' C51' 1.444(9) . ? O50' C54' 1.453(9) . ? C51' C52' 1.509(10) . ? C52' C53' 1.487(10) . ? C53' C54' 1.483(10) . ? loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle_publ_flag C5 B C11 109.9(3) . . ? C5 B C1 112.0(3) . . ? C11 B C1 110.4(3) . . ? C5 B C4 111.4(3) . . ? C11 B C4 112.0(3) . . ? C1 B C4 100.9(3) . . ? C2 C1 B 105.2(3) . . ? C3 C2 C1 105.1(3) . . ? C2 C3 C4 104.5(3) . . ? C3 C4 B 105.5(3) . . ? C10 C5 C6 108.3(3) . . ? C10 C5 B 114.4(3) . . ? C6 C5 B 114.4(3) . . ? C7 C6 C5 114.1(3) . . ? C8 C7 C6 111.4(4) . . ? C7 C8 C9 110.9(4) . . ? C10 C9 C8 111.7(4) . . ? C9 C10 C5 114.4(3) . . ? C16 C11 C12 107.9(3) . . ? C16 C11 B 115.2(3) . . ? C12 C11 B 114.8(3) . . ? C13 C12 C11 113.0(3) . . ? C14 C13 C12 112.1(4) . . ? C13 C14 C15 110.9(4) . . ? C14 C15 C16 112.2(4) . . ? C15 C16 C11 113.1(4) . . ? O25 Mg O25 180.0 3_556 . ? O25 Mg O20 90.34(8) 3_556 3_556 ? O25 Mg O20 89.66(8) . 3_556 ? O25 Mg O20 89.66(8) 3_556 . ? O25 Mg O20 90.34(8) . . ? O20 Mg O20 180.0 3_556 . ? O25 Mg O30 89.81(8) 3_556 3_556 ? O25 Mg O30 90.19(8) . 3_556 ? O20 Mg O30 89.87(8) 3_556 3_556 ? O20 Mg O30 90.13(8) . 3_556 ? O25 Mg O30 90.19(8) 3_556 . ? O25 Mg O30 89.81(8) . . ? O20 Mg O30 90.13(8) 3_556 . ? O20 Mg O30 89.87(8) . . ? O30 Mg O30 180.00(12) 3_556 . ? C21 O20 C24 108.0(3) . . ? C21 O20 Mg 125.98(19) . . ? C24 O20 Mg 126.0(2) . . ? O20 C21 C22 106.8(3) . . ? C23 C22 C21 104.3(3) . . ? C22 C23 C24 105.8(4) . . ? O20 C24 C23 104.1(3) . . ? C29 O25 C26 108.3(2) . . ? C29 O25 Mg 126.30(18) . . ? C26 O25 Mg 125.35(18) . . ? O25 C26 C27 105.8(3) . . ? C26 C27 C28 103.3(3) . . ? C29 C28 C27 102.4(3) . . ? O25 C29 C28 106.4(3) . . ? C31 O30 C34 107.9(2) . . ? C31 O30 Mg 125.40(19) . . ? C34 O30 Mg 126.68(18) . . ? O30 C31 C32 106.3(3) . . ? C31 C32 C33 102.5(3) . . ? C34 C33 C32 103.4(3) . . ? O30 C34 C33 105.9(3) . . ? C41 O40 C44 108.3(4) . . ? O40 C41 C42 107.6(5) . . ? C43 C42 C41 102.9(5) . . ? C44 C43 C42 105.2(5) . . ? O40 C44 C43 109.1(5) . . ? C41' O40' C44' 106.7(8) . . ? O40' C41' C42' 107.4(8) . . ? C43' C42' C41' 102.2(8) . . ? C44' C43' C42' 101.0(9) . . ? O40' C44' C43' 104.9(9) . . ? C51 O50 C54 103.9(7) . . ? O50 C51 C52 108.6(7) . . ? C51 C52 C53 104.7(6) . . ? C54 C53 C52 106.8(6) . . ? O50 C54 C53 106.2(7) . . ? C51' O50' C54' 105.3(8) . . ? O50' C51' C52' 104.9(9) . . ? C53' C52' C51' 96.9(9) . . ? C54' C53' C52' 100.6(9) . . ? O50' C54' C53' 105.4(9) . . ? _diffrn_measured_fraction_theta_max 0.906 _diffrn_reflns_theta_full 60.01 _diffrn_measured_fraction_theta_full 0.906 _refine_diff_density_max 0.459 _refine_diff_density_min -0.297 _refine_diff_density_rms 0.052 data_Compound_4 _database_code_depnum_ccdc_archive 'CCDC 236835' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety ? _chemical_formula_sum 'C37 H72 B Br Mg O6' _chemical_formula_weight 727.98 loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' B B 0.0013 0.0007 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Mg Mg 0.0486 0.0363 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Br Br -0.2901 2.4595 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' _symmetry_cell_setting Monoclinic _symmetry_space_group_name_H-M P2(1)/c loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, y+1/2, -z+1/2' '-x, -y, -z' 'x, -y-1/2, z-1/2' _cell_length_a 10.953(2) _cell_length_b 14.4213(16) _cell_length_c 25.584(3) _cell_angle_alpha 90.00 _cell_angle_beta 93.597(15) _cell_angle_gamma 90.00 _cell_volume 4033.4(11) _cell_formula_units_Z 4 _cell_measurement_temperature 203(2) _cell_measurement_reflns_used 35 _cell_measurement_theta_min 4.57 _cell_measurement_theta_max 12.51 _exptl_crystal_description blocks _exptl_crystal_colour Colourless _exptl_crystal_size_max 1.00 _exptl_crystal_size_mid 0.50 _exptl_crystal_size_min 0.50 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.199 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 1576 _exptl_absorpt_coefficient_mu 1.075 _exptl_absorpt_correction_type Empirical _exptl_absorpt_correction_T_min 0.5761 _exptl_absorpt_correction_T_max 0.8712 _exptl_absorpt_process_details ? _exptl_special_details ; ? ; _diffrn_ambient_temperature 203(2) _diffrn_radiation_wavelength 0.71073 _diffrn_radiation_type MoK\a _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_monochromator graphite _diffrn_measurement_device_type 'Bruker P4' _diffrn_measurement_method '\w scans' _diffrn_detector_area_resol_mean ? _diffrn_standards_number 3 _diffrn_standards_interval_count 97 _diffrn_standards_interval_time ? _diffrn_standards_decay_% ? _diffrn_reflns_number 7435 _diffrn_reflns_av_R_equivalents 0.0224 _diffrn_reflns_av_sigmaI/netI 0.0611 _diffrn_reflns_limit_h_min 0 _diffrn_reflns_limit_h_max 13 _diffrn_reflns_limit_k_min -17 _diffrn_reflns_limit_k_max 0 _diffrn_reflns_limit_l_min -30 _diffrn_reflns_limit_l_max 30 _diffrn_reflns_theta_min 1.86 _diffrn_reflns_theta_max 25.00 _reflns_number_total 7040 _reflns_number_gt 4555 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'Bruker XSCANS' _computing_cell_refinement 'Bruker XSCANS' _computing_data_reduction 'Bruker SHELXTL' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1990)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_molecular_graphics 'Bruker SHELXTL' _computing_publication_material 'Bruker SHELXTL' _refine_special_details ; Refinement of F^2^ against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F^2^, conventional R-factors R are based on F, with F set to zero for negative F^2^. The threshold expression of F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F^2^ are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. ; _refine_ls_structure_factor_coef Fsqd _refine_ls_matrix_type full _refine_ls_weighting_scheme calc _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.0509P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _atom_sites_solution_hydrogens geom _refine_ls_hydrogen_treatment mixed _refine_ls_extinction_method SHELXL _refine_ls_extinction_coef 0.0002(2) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_number_reflns 7040 _refine_ls_number_parameters 513 _refine_ls_number_restraints 626 _refine_ls_R_factor_all 0.0899 _refine_ls_R_factor_gt 0.0464 _refine_ls_wR_factor_ref 0.1072 _refine_ls_wR_factor_gt 0.0951 _refine_ls_goodness_of_fit_ref 0.979 _refine_ls_restrained_S_all 0.969 _refine_ls_shift/su_max 0.002 _refine_ls_shift/su_mean 0.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_occupancy _atom_site_symmetry_multiplicity _atom_site_calc_flag _atom_site_refinement_flags _atom_site_disorder_assembly _atom_site_disorder_group B B 0.2253(4) 0.3998(3) 0.22476(15) 0.0394(8) Uani 1 1 d . . . C1 C 0.1081(4) 0.3655(3) 0.25730(17) 0.0546(10) Uani 1 1 d . . . H1A H 0.1163 0.3912 0.2928 0.065 Uiso 1 1 calc R . . H1B H 0.0325 0.3902 0.2401 0.065 Uiso 1 1 calc R . . C2 C 0.0983(4) 0.2605(3) 0.2607(2) 0.0698(13) Uani 1 1 d . . . H2A H 0.0287 0.2441 0.2811 0.084 Uiso 1 1 calc R . . H2B H 0.0829 0.2350 0.2254 0.084 Uiso 1 1 calc R . . C3 C 0.2132(4) 0.2175(3) 0.28578(18) 0.0656(12) Uani 1 1 d . . . H3A H 0.2037 0.1499 0.2861 0.079 Uiso 1 1 calc R . . H3B H 0.2241 0.2385 0.3222 0.079 Uiso 1 1 calc R . . C4 C 0.3265(4) 0.2419(3) 0.25757(16) 0.0553(10) Uani 1 1 d . . . H4A H 0.3198 0.2149 0.2224 0.066 Uiso 1 1 calc R . . H4B H 0.3984 0.2148 0.2765 0.066 Uiso 1 1 calc R . . C5 C 0.3442(3) 0.3460(3) 0.25322(16) 0.0526(9) Uani 1 1 d . . . H5A H 0.4160 0.3580 0.2332 0.063 Uiso 1 1 calc R . . H5B H 0.3608 0.3717 0.2884 0.063 Uiso 1 1 calc R . . C6 C 0.2081(4) 0.3784(3) 0.16165(15) 0.0597(11) Uani 1 1 d . . . H6A H 0.2012 0.3104 0.1569 0.072 Uiso 1 1 calc R . . C7 C 0.3221(5) 0.4118(4) 0.13447(19) 0.0845(15) Uani 1 1 d U . . H7A H 0.3914 0.3724 0.1462 0.101 Uiso 1 1 calc R . . H7B H 0.3074 0.4026 0.0967 0.101 Uiso 1 1 calc R . . C8 C 0.3591(5) 0.5138(4) 0.1442(2) 0.0861(15) Uani 1 1 d U . . H8A H 0.4430 0.5224 0.1339 0.103 Uiso 1 1 calc R . . H8B H 0.3058 0.5533 0.1215 0.103 Uiso 1 1 calc R . . C9 C 0.3520(4) 0.5459(3) 0.2001(2) 0.0657(12) Uani 1 1 d . . . H9A H 0.3540 0.6138 0.2007 0.079 Uiso 1 1 calc R . . H9B H 0.4248 0.5237 0.2206 0.079 Uiso 1 1 calc R . . C10 C 0.2389(3) 0.5133(3) 0.22657(15) 0.0503(9) Uani 1 1 d . . . H10A H 0.2494 0.5316 0.2639 0.060 Uiso 1 1 calc R . . C11 C 0.1215(4) 0.5595(3) 0.20361(19) 0.0658(12) Uani 1 1 d . . . H11A H 0.0564 0.5478 0.2273 0.079 Uiso 1 1 calc R . . H11B H 0.1349 0.6266 0.2027 0.079 Uiso 1 1 calc R . . C12 C 0.0771(5) 0.5279(4) 0.1490(2) 0.0876(16) Uani 1 1 d U . . H12A H 0.1231 0.5618 0.1235 0.105 Uiso 1 1 calc R . . H12B H -0.0091 0.5453 0.1431 0.105 Uiso 1 1 calc R . . C13 C 0.0892(5) 0.4231(4) 0.1382(2) 0.0835(15) Uani 1 1 d U . . H13A H 0.0195 0.3910 0.1522 0.100 Uiso 1 1 calc R . . H13B H 0.0844 0.4134 0.1002 0.100 Uiso 1 1 calc R . . Mg Mg 0.73903(9) 0.44674(8) 0.40622(4) 0.0325(2) Uani 1 1 d . A . Br Br 0.75280(3) 0.49517(3) 0.504000(11) 0.04546(11) Uani 1 1 d . . . O20 O 0.87778(19) 0.54392(16) 0.38768(8) 0.0368(5) Uani 1 1 d . . . C21 C 0.9417(3) 0.6060(3) 0.42572(14) 0.0488(9) Uani 1 1 d . . . H21A H 0.9836 0.5702 0.4540 0.059 Uiso 1 1 calc R . . H21B H 0.8836 0.6483 0.4410 0.059 Uiso 1 1 calc R . . C22 C 1.0334(4) 0.6600(3) 0.39580(15) 0.0502(9) Uani 1 1 d . . . H22A H 1.1086 0.6716 0.4176 0.060 Uiso 1 1 calc R . . H22B H 0.9991 0.7194 0.3833 0.060 Uiso 1 1 calc R . . C23 C 1.0570(3) 0.5961(3) 0.35039(14) 0.0486(9) Uani 1 1 d . . . H23A H 1.0861 0.6309 0.3207 0.058 Uiso 1 1 calc R . . H23B H 1.1170 0.5482 0.3609 0.058 Uiso 1 1 calc R . . C24 C 0.9320(3) 0.5545(3) 0.33717(13) 0.0440(8) Uani 1 1 d . . . H24A H 0.8823 0.5957 0.3140 0.053 Uiso 1 1 calc R . . H24B H 0.9393 0.4943 0.3199 0.053 Uiso 1 1 calc R . . O30 O 0.7273(2) 0.40861(16) 0.32560(8) 0.0355(5) Uani 1 1 d . . . C31 C 0.6646(3) 0.4624(3) 0.28354(12) 0.0435(8) Uani 1 1 d . . . H31A H 0.6861 0.5282 0.2868 0.052 Uiso 1 1 calc R . . H31B H 0.5757 0.4561 0.2846 0.052 Uiso 1 1 calc R . . C32 C 0.7079(4) 0.4226(3) 0.23317(14) 0.0610(12) Uani 1 1 d . . . H32A H 0.7833 0.4527 0.2234 0.073 Uiso 1 1 calc R . . H32B H 0.6452 0.4289 0.2043 0.073 Uiso 1 1 calc R . . C33 C 0.7298(4) 0.3214(3) 0.24762(15) 0.0602(11) Uani 1 1 d . . . H33A H 0.6529 0.2864 0.2463 0.072 Uiso 1 1 calc R . . H33B H 0.7861 0.2920 0.2244 0.072 Uiso 1 1 calc R . . C34 C 0.7857(3) 0.3281(3) 0.30284(13) 0.0448(8) Uani 1 1 d . . . H34A H 0.7693 0.2717 0.3226 0.054 Uiso 1 1 calc R . . H34B H 0.8744 0.3371 0.3029 0.054 Uiso 1 1 calc R . . O40 O 0.6002(2) 0.34582(16) 0.41888(9) 0.0386(5) Uani 1 1 d D . . C41 C 0.5557(18) 0.2748(14) 0.3815(5) 0.044(4) Uani 0.54(2) 1 d PD A 1 H41A H 0.6238 0.2371 0.3705 0.053 Uiso 0.54(2) 1 calc PR A 1 H41B H 0.5148 0.3037 0.3505 0.053 Uiso 0.54(2) 1 calc PR A 1 C42 C 0.4673(12) 0.2160(8) 0.4092(4) 0.063(3) Uani 0.54(2) 1 d PD A 1 H42A H 0.5080 0.1615 0.4251 0.075 Uiso 0.54(2) 1 calc PR A 1 H42B H 0.3994 0.1956 0.3851 0.075 Uiso 0.54(2) 1 calc PR A 1 C43 C 0.4230(11) 0.2811(10) 0.4507(7) 0.076(5) Uani 0.54(2) 1 d PD A 1 H43A H 0.3576 0.3217 0.4362 0.091 Uiso 0.54(2) 1 calc PR A 1 H43B H 0.3932 0.2464 0.4803 0.091 Uiso 0.54(2) 1 calc PR A 1 C44 C 0.5360(12) 0.3355(11) 0.4670(4) 0.074(8) Uani 0.54(2) 1 d PD A 1 H44A H 0.5145 0.3962 0.4810 0.088 Uiso 0.54(2) 1 calc PR A 1 H44B H 0.5866 0.3020 0.4937 0.088 Uiso 0.54(2) 1 calc PR A 1 C41' C 0.539(2) 0.2847(17) 0.3802(5) 0.051(7) Uani 0.46(2) 1 d PD A 2 H41C H 0.5888 0.2295 0.3747 0.061 Uiso 0.46(2) 1 calc PR A 2 H41D H 0.5242 0.3169 0.3466 0.061 Uiso 0.46(2) 1 calc PR A 2 C42' C 0.4209(11) 0.2587(12) 0.4025(4) 0.055(4) Uani 0.46(2) 1 d PD A 2 H42C H 0.3905 0.1992 0.3886 0.066 Uiso 0.46(2) 1 calc PR A 2 H42D H 0.3584 0.3064 0.3954 0.066 Uiso 0.46(2) 1 calc PR A 2 C43' C 0.4577(16) 0.2522(13) 0.4612(5) 0.077(6) Uani 0.46(2) 1 d PDU A 2 H43C H 0.3866 0.2584 0.4824 0.092 Uiso 0.46(2) 1 calc PR A 2 H43D H 0.4998 0.1938 0.4699 0.092 Uiso 0.46(2) 1 calc PR A 2 C44' C 0.5420(11) 0.3334(10) 0.4684(3) 0.045(6) Uani 0.46(2) 1 d PD A 2 H44C H 0.4961 0.3892 0.4768 0.054 Uiso 0.46(2) 1 calc PR A 2 H44D H 0.6039 0.3216 0.4969 0.054 Uiso 0.46(2) 1 calc PR A 2 O50 O 0.8726(2) 0.34185(17) 0.41823(8) 0.0396(5) Uani 1 1 d . . . C51 C 0.8527(4) 0.2603(3) 0.44992(18) 0.0597(11) Uani 1 1 d . A . H51A H 0.8012 0.2153 0.4301 0.072 Uiso 1 1 calc R . . H51B H 0.8122 0.2774 0.4816 0.072 Uiso 1 1 calc R . . C52 C 0.9763(4) 0.2194(3) 0.46416(16) 0.0567(10) Uani 1 1 d . . . H52A H 1.0044 0.2360 0.5001 0.068 Uiso 1 1 calc R A . H52B H 0.9743 0.1516 0.4610 0.068 Uiso 1 1 calc R . . C53 C 1.0571(4) 0.2606(4) 0.4258(2) 0.0728(13) Uani 1 1 d . A . H53A H 1.0560 0.2235 0.3936 0.087 Uiso 1 1 calc R . . H53B H 1.1416 0.2654 0.4406 0.087 Uiso 1 1 calc R . . C54 C 1.0034(3) 0.3542(3) 0.41523(17) 0.0556(10) Uani 1 1 d . A . H54A H 1.0352 0.3990 0.4415 0.067 Uiso 1 1 calc R . . H54B H 1.0224 0.3762 0.3804 0.067 Uiso 1 1 calc R . . O60 O 0.60082(19) 0.54506(16) 0.38643(9) 0.0369(5) Uani 1 1 d D . . C61 C 0.6189(4) 0.6435(3) 0.3955(4) 0.0410(16) Uani 0.755(19) 1 d PD A 1 H61A H 0.6828 0.6672 0.3739 0.049 Uiso 0.755(19) 1 calc PR A 1 H61B H 0.6441 0.6550 0.4323 0.049 Uiso 0.755(19) 1 calc PR A 1 C62 C 0.5007(5) 0.6906(4) 0.3813(4) 0.059(2) Uani 0.755(19) 1 d PD A 1 H62A H 0.5116 0.7397 0.3555 0.070 Uiso 0.755(19) 1 calc PR A 1 H62B H 0.4670 0.7180 0.4123 0.070 Uiso 0.755(19) 1 calc PR A 1 C63 C 0.4175(7) 0.6156(5) 0.3585(5) 0.076(3) Uani 0.755(19) 1 d PD A 1 H63A H 0.3339 0.6242 0.3692 0.091 Uiso 0.755(19) 1 calc PR A 1 H63B H 0.4159 0.6162 0.3201 0.091 Uiso 0.755(19) 1 calc PR A 1 C64 C 0.4695(4) 0.5275(4) 0.3794(4) 0.0492(17) Uani 0.755(19) 1 d PD A 1 H64A H 0.4357 0.5118 0.4129 0.059 Uiso 0.755(19) 1 calc PR A 1 H64B H 0.4524 0.4765 0.3547 0.059 Uiso 0.755(19) 1 calc PR A 1 C61' C 0.6177(12) 0.6455(9) 0.3799(10) 0.045(7) Uiso 0.245(19) 1 d PD A 2 H61C H 0.6839 0.6585 0.3569 0.054 Uiso 0.245(19) 1 calc PR A 2 H61D H 0.6359 0.6759 0.4137 0.054 Uiso 0.245(19) 1 calc PR A 2 C62' C 0.4959(13) 0.6769(11) 0.3553(9) 0.043(5) Uiso 0.245(19) 1 d PD A 2 H62C H 0.4806 0.7421 0.3634 0.051 Uiso 0.245(19) 1 calc PR A 2 H62D H 0.4925 0.6690 0.3172 0.051 Uiso 0.245(19) 1 calc PR A 2 C63' C 0.4048(10) 0.6148(11) 0.3795(7) 0.038(5) Uiso 0.245(19) 1 d PD A 2 H63C H 0.3713 0.6452 0.4098 0.046 Uiso 0.245(19) 1 calc PR A 2 H63D H 0.3373 0.5996 0.3540 0.046 Uiso 0.245(19) 1 calc PR A 2 C64' C 0.4734(11) 0.5300(9) 0.3960(7) 0.025(5) Uiso 0.245(19) 1 d PD A 2 H64C H 0.4647 0.5180 0.4333 0.030 Uiso 0.245(19) 1 calc PR A 2 H64D H 0.4415 0.4764 0.3760 0.030 Uiso 0.245(19) 1 calc PR A 2 O70 O 0.7012(13) 0.1252(7) 0.5293(5) 0.168(5) Uani 0.662(4) 1 d PDU B 1 C71 C 0.7156(19) 0.1131(9) 0.5803(6) 0.142(6) Uani 0.662(4) 1 d PDU B 1 H71A H 0.6455 0.1383 0.5976 0.170 Uiso 0.662(4) 1 calc PR B 1 H71B H 0.7901 0.1441 0.5945 0.170 Uiso 0.662(4) 1 calc PR B 1 C72 C 0.7247(13) 0.0131(8) 0.5886(3) 0.114(3) Uani 0.662(4) 1 d PDU B 1 H72A H 0.7891 -0.0016 0.6156 0.137 Uiso 0.662(4) 1 calc PR B 1 H72B H 0.6469 -0.0122 0.5991 0.137 Uiso 0.662(4) 1 calc PR B 1 C73 C 0.7533(18) -0.0226(9) 0.5400(8) 0.139(6) Uani 0.662(4) 1 d PDU B 1 H73A H 0.7093 -0.0807 0.5324 0.166 Uiso 0.662(4) 1 calc PR B 1 H73B H 0.8414 -0.0341 0.5393 0.166 Uiso 0.662(4) 1 calc PR B 1 C74 C 0.7143(19) 0.0490(13) 0.5022(4) 0.162(6) Uani 0.662(4) 1 d PDU B 1 H74A H 0.7761 0.0578 0.4765 0.194 Uiso 0.662(4) 1 calc PR B 1 H74B H 0.6368 0.0317 0.4835 0.194 Uiso 0.662(4) 1 calc PR B 1 O70' O 0.808(2) 0.115(2) 0.5397(14) 0.130(11) Uiso 0.170(7) 1 d PDU C 2 C71' C 0.810(2) 0.0329(17) 0.5175(11) 0.058(6) Uiso 0.170(7) 1 d PDU C 2 H71C H 0.8698 -0.0077 0.5359 0.070 Uiso 0.170(7) 1 calc PR C 2 H71D H 0.8290 0.0379 0.4807 0.070 Uiso 0.170(7) 1 calc PR C 2 C72' C 0.684(3) -0.003(2) 0.522(3) 0.151(16) Uiso 0.170(7) 1 d PDU C 2 H72C H 0.6577 -0.0390 0.4907 0.181 Uiso 0.170(7) 1 calc PR C 2 H72D H 0.6799 -0.0420 0.5529 0.181 Uiso 0.170(7) 1 calc PR C 2 C73' C 0.613(2) 0.077(3) 0.5258(18) 0.106(11) Uiso 0.170(7) 1 d PDU C 2 H73C H 0.5517 0.0678 0.5515 0.128 Uiso 0.170(7) 1 calc PR C 2 H73D H 0.5716 0.0921 0.4919 0.128 Uiso 0.170(7) 1 calc PR C 2 C74' C 0.699(3) 0.150(3) 0.543(3) 0.130(16) Uiso 0.170(7) 1 d PDU C 2 H74C H 0.6877 0.2041 0.5197 0.156 Uiso 0.170(7) 1 calc PR C 2 H74D H 0.6853 0.1688 0.5786 0.156 Uiso 0.170(7) 1 calc PR C 2 O70" O 0.753(4) 0.086(3) 0.585(2) 0.141(14) Uiso 0.168(7) 1 d PDU D 3 C71" C 0.825(3) 0.021(4) 0.569(3) 0.163(16) Uiso 0.168(7) 1 d PDU D 3 H71E H 0.8669 -0.0107 0.5989 0.196 Uiso 0.168(7) 1 calc PR D 3 H71F H 0.8870 0.0485 0.5476 0.196 Uiso 0.168(7) 1 calc PR D 3 C72" C 0.748(4) -0.043(4) 0.538(3) 0.105(14) Uiso 0.168(7) 1 d PDU D 3 H72E H 0.7785 -0.0508 0.5032 0.126 Uiso 0.168(7) 1 calc PR D 3 H72F H 0.7471 -0.1038 0.5553 0.126 Uiso 0.168(7) 1 calc PR D 3 C73" C 0.632(4) -0.004(3) 0.535(2) 0.144(14) Uiso 0.168(7) 1 d PDU D 3 H73E H 0.5721 -0.0481 0.5471 0.173 Uiso 0.168(7) 1 calc PR D 3 H73F H 0.6082 0.0130 0.4986 0.173 Uiso 0.168(7) 1 calc PR D 3 C74" C 0.639(3) 0.078(3) 0.568(2) 0.125(14) Uiso 0.168(7) 1 d PDU D 3 H74E H 0.6128 0.1329 0.5479 0.150 Uiso 0.168(7) 1 calc PR D 3 H74F H 0.5859 0.0706 0.5972 0.150 Uiso 0.168(7) 1 calc PR D 3 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_23 _atom_site_aniso_U_13 _atom_site_aniso_U_12 B 0.0370(19) 0.038(2) 0.0441(19) -0.0053(16) 0.0068(15) -0.0003(16) C1 0.048(2) 0.044(2) 0.075(3) -0.0027(19) 0.0216(19) -0.0023(17) C2 0.056(3) 0.047(2) 0.109(4) -0.001(2) 0.030(2) -0.004(2) C3 0.080(3) 0.047(2) 0.072(3) 0.009(2) 0.024(2) -0.001(2) C4 0.055(2) 0.054(2) 0.056(2) 0.0079(18) 0.0007(18) 0.0127(19) C5 0.0385(19) 0.055(2) 0.064(2) 0.0042(19) 0.0027(16) -0.0035(18) C6 0.078(3) 0.049(2) 0.051(2) -0.0044(18) -0.0017(19) 0.015(2) C7 0.106(3) 0.084(3) 0.067(2) 0.003(2) 0.036(2) 0.025(3) C8 0.085(3) 0.084(3) 0.093(3) 0.018(3) 0.040(2) 0.009(3) C9 0.049(2) 0.049(2) 0.100(3) 0.016(2) 0.013(2) -0.003(2) C10 0.051(2) 0.040(2) 0.0607(19) -0.0052(17) 0.0094(16) -0.0014(17) C11 0.056(2) 0.047(2) 0.096(3) 0.003(2) 0.016(2) 0.011(2) C12 0.084(3) 0.074(3) 0.101(3) 0.012(2) -0.020(3) 0.020(2) C13 0.095(3) 0.075(3) 0.076(3) -0.004(2) -0.028(2) 0.014(3) Mg 0.0269(5) 0.0384(6) 0.0328(5) -0.0005(4) 0.0056(4) -0.0018(5) Br 0.03937(15) 0.0642(2) 0.03344(15) -0.00558(18) 0.00716(10) -0.0077(2) O20 0.0305(11) 0.0455(13) 0.0351(10) -0.0038(9) 0.0081(9) -0.0077(10) C21 0.0387(19) 0.059(2) 0.0496(19) -0.0143(18) 0.0063(15) -0.0142(18) C22 0.044(2) 0.051(2) 0.057(2) -0.0019(18) 0.0039(17) -0.0150(18) C23 0.0345(18) 0.058(2) 0.054(2) 0.0048(18) 0.0128(15) -0.0106(17) C24 0.0399(18) 0.054(2) 0.0388(16) 0.0005(16) 0.0107(14) -0.0122(17) O30 0.0355(11) 0.0386(12) 0.0328(10) -0.0013(9) 0.0062(8) 0.0025(10) C31 0.0371(17) 0.055(2) 0.0388(16) 0.0026(15) 0.0036(13) 0.0002(15) C32 0.062(3) 0.088(3) 0.0332(17) -0.0029(19) 0.0056(16) 0.009(2) C33 0.066(3) 0.069(3) 0.045(2) -0.0211(19) 0.0039(18) 0.005(2) C34 0.0475(19) 0.043(2) 0.0448(18) -0.0058(15) 0.0090(15) 0.0042(16) O40 0.0346(12) 0.0434(13) 0.0387(12) -0.0007(10) 0.0089(10) -0.0084(10) C41 0.039(5) 0.034(6) 0.058(9) -0.010(5) -0.002(5) -0.017(6) C42 0.060(7) 0.055(6) 0.073(6) -0.001(5) 0.008(5) -0.019(5) C43 0.055(6) 0.066(8) 0.111(13) -0.020(7) 0.044(7) -0.025(6) C44 0.071(11) 0.094(15) 0.064(10) 0.011(8) 0.058(7) -0.021(9) C41' 0.062(11) 0.062(12) 0.030(8) 0.007(6) 0.011(6) 0.008(7) C42' 0.045(6) 0.067(9) 0.052(6) 0.005(5) -0.001(4) -0.023(5) C43' 0.106(13) 0.082(12) 0.045(6) 0.005(7) 0.021(7) -0.043(10) C44' 0.046(9) 0.043(9) 0.043(9) -0.012(6) -0.018(7) -0.011(6) O50 0.0310(11) 0.0458(14) 0.0424(12) 0.0047(10) 0.0047(9) 0.0038(10) C51 0.049(2) 0.054(2) 0.077(3) 0.022(2) 0.013(2) 0.0078(19) C52 0.059(2) 0.051(2) 0.059(2) 0.0030(19) -0.0054(18) 0.011(2) C53 0.042(2) 0.082(3) 0.096(3) 0.015(3) 0.013(2) 0.019(2) C54 0.0309(19) 0.065(3) 0.071(3) 0.008(2) 0.0040(17) 0.0008(18) O60 0.0296(11) 0.0380(12) 0.0436(11) -0.0030(10) 0.0068(9) 0.0000(10) C61 0.043(3) 0.040(3) 0.040(4) 0.002(2) 0.006(2) -0.001(2) C62 0.058(4) 0.044(3) 0.074(6) -0.003(3) 0.007(3) 0.006(3) C63 0.055(4) 0.069(5) 0.100(7) 0.008(4) -0.021(4) 0.009(3) C64 0.034(3) 0.059(4) 0.055(4) -0.010(3) 0.003(2) -0.003(2) O70 0.265(14) 0.086(6) 0.152(11) 0.054(6) 0.013(9) 0.020(8) C71 0.201(15) 0.096(9) 0.134(12) -0.013(9) 0.042(11) 0.027(10) C72 0.160(10) 0.105(8) 0.081(5) 0.018(6) 0.031(6) -0.001(8) C73 0.184(14) 0.082(9) 0.152(12) -0.001(8) 0.021(10) 0.033(9) C74 0.228(16) 0.197(14) 0.061(6) 0.006(8) 0.012(8) -0.031(13) _geom_special_details ; All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. ; loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_site_symmetry_2 _geom_bond_publ_flag B C6 1.643(5) . ? B C10 1.644(5) . ? B C5 1.647(5) . ? B C1 1.649(5) . ? C1 C2 1.522(6) . ? C2 C3 1.509(7) . ? C3 C4 1.516(6) . ? C4 C5 1.519(6) . ? C6 C13 1.540(6) . ? C6 C7 1.545(7) . ? C7 C8 1.541(8) . ? C8 C9 1.511(7) . ? C9 C10 1.522(5) . ? C10 C11 1.532(6) . ? C11 C12 1.519(7) . ? C12 C13 1.544(7) . ? Mg O60 2.112(2) . ? Mg O50 2.113(3) . ? Mg O30 2.131(2) . ? Mg O20 2.142(2) . ? Mg O40 2.144(2) . ? Mg Br 2.5927(10) . ? O20 C24 1.464(4) . ? O20 C21 1.468(4) . ? C21 C22 1.515(5) . ? C22 C23 1.517(5) . ? C23 C24 1.514(5) . ? O30 C31 1.462(4) . ? O30 C34 1.464(4) . ? C31 C32 1.514(5) . ? C32 C33 1.521(7) . ? C33 C34 1.507(5) . ? O40 C41' 1.457(10) . ? O40 C44 1.463(7) . ? O40 C41 1.463(8) . ? O40 C44' 1.464(9) . ? C41 C42 1.498(10) . ? C42 C43 1.520(12) . ? C43 C44 1.502(11) . ? C41' C42' 1.494(12) . ? C42' C43' 1.533(12) . ? C43' C44' 1.496(11) . ? O50 C54 1.452(4) . ? O50 C51 1.453(4) . ? C51 C52 1.500(5) . ? C52 C53 1.487(6) . ? C53 C54 1.490(6) . ? O60 C64' 1.448(11) . ? O60 C61 1.451(5) . ? O60 C64 1.460(5) . ? O60 C61' 1.471(12) . ? C61 C62 1.487(7) . ? C62 C63 1.509(9) . ? C63 C64 1.480(7) . ? C61' C62' 1.509(13) . ? C62' C63' 1.502(13) . ? C63' C64' 1.483(12) . ? O70 C74 1.312(13) . ? O70 C71 1.316(15) . ? C71 C72 1.459(16) . ? C72 C73 1.40(2) . ? C73 C74 1.461(18) . ? O70' C74' 1.304(17) . ? O70' C71' 1.317(17) . ? C71' C72' 1.47(2) . ? C72' C73' 1.39(3) . ? C73' C74' 1.46(2) . ? O70" C71" 1.303(17) . ? O70" C74" 1.310(18) . ? C71" C72" 1.45(2) . ? C72" C73" 1.39(3) . ? C73" C74" 1.45(2) . ? loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle_publ_flag C6 B C10 102.7(3) . . ? C6 B C5 112.6(3) . . ? C10 B C5 112.9(3) . . ? C6 B C1 113.2(3) . . ? C10 B C1 110.9(3) . . ? C5 B C1 104.8(3) . . ? C2 C1 B 112.8(3) . . ? C3 C2 C1 111.9(4) . . ? C2 C3 C4 112.8(4) . . ? C3 C4 C5 112.2(3) . . ? C4 C5 B 113.4(3) . . ? C13 C6 C7 112.4(4) . . ? C13 C6 B 110.3(4) . . ? C7 C6 B 109.7(4) . . ? C8 C7 C6 115.9(4) . . ? C9 C8 C7 114.6(4) . . ? C8 C9 C10 114.7(4) . . ? C9 C10 C11 112.5(3) . . ? C9 C10 B 111.7(3) . . ? C11 C10 B 110.4(3) . . ? C12 C11 C10 115.8(4) . . ? C11 C12 C13 115.6(4) . . ? C6 C13 C12 114.8(4) . . ? O60 Mg O50 173.94(10) . . ? O60 Mg O30 86.69(9) . . ? O50 Mg O30 87.44(9) . . ? O60 Mg O20 90.89(10) . . ? O50 Mg O20 90.36(10) . . ? O30 Mg O20 87.43(9) . . ? O60 Mg O40 89.28(10) . . ? O50 Mg O40 89.03(10) . . ? O30 Mg O40 88.32(9) . . ? O20 Mg O40 175.73(9) . . ? O60 Mg Br 92.74(7) . . ? O50 Mg Br 93.13(7) . . ? O30 Mg Br 179.32(8) . . ? O20 Mg Br 92.19(7) . . ? O40 Mg Br 92.06(7) . . ? C24 O20 C21 108.6(2) . . ? C24 O20 Mg 126.62(19) . . ? C21 O20 Mg 124.60(19) . . ? O20 C21 C22 106.4(3) . . ? C21 C22 C23 103.0(3) . . ? C24 C23 C22 102.5(3) . . ? O20 C24 C23 104.8(3) . . ? C31 O30 C34 108.9(2) . . ? C31 O30 Mg 124.93(19) . . ? C34 O30 Mg 126.04(19) . . ? O30 C31 C32 105.5(3) . . ? C31 C32 C33 102.1(3) . . ? C34 C33 C32 102.4(3) . . ? O30 C34 C33 105.2(3) . . ? C41' O40 C44 106.6(6) . . ? C41' O40 C41 9(2) . . ? C44 O40 C41 108.7(5) . . ? C41' O40 C44' 107.9(5) . . ? C44 O40 C44' 3.1(12) . . ? C41 O40 C44' 109.5(6) . . ? C41' O40 Mg 127.5(5) . . ? C44 O40 Mg 125.4(4) . . ? C41 O40 Mg 125.9(4) . . ? C44' O40 Mg 124.4(4) . . ? O40 C41 C42 106.6(6) . . ? C41 C42 C43 103.0(8) . . ? C44 C43 C42 102.8(8) . . ? O40 C44 C43 104.6(7) . . ? O40 C41' C42' 105.3(7) . . ? C41' C42' C43' 102.1(9) . . ? C44' C43' C42' 101.2(8) . . ? O40 C44' C43' 106.8(6) . . ? C54 O50 C51 108.2(3) . . ? C54 O50 Mg 125.5(2) . . ? C51 O50 Mg 122.3(2) . . ? O50 C51 C52 106.8(3) . . ? C53 C52 C51 104.3(3) . . ? C52 C53 C54 103.7(3) . . ? O50 C54 C53 105.0(3) . . ? C64' O60 C61 104.1(6) . . ? C64' O60 C64 16.8(7) . . ? C61 O60 C64 108.3(3) . . ? C64' O60 C61' 107.2(7) . . ? C61 O60 C61' 15.7(10) . . ? C64 O60 C61' 106.7(6) . . ? C64' O60 Mg 122.9(5) . . ? C61 O60 Mg 122.0(3) . . ? C64 O60 Mg 126.8(3) . . ? C61' O60 Mg 126.5(5) . . ? O60 C61 C62 107.5(4) . . ? C61 C62 C63 105.2(4) . . ? C64 C63 C62 105.4(5) . . ? O60 C64 C63 104.5(4) . . ? O60 C61' C62' 103.2(8) . . ? C63' C62' C61' 104.0(8) . . ? C64' C63' C62' 105.7(7) . . ? O60 C64' C63' 107.7(7) . . ? C74 O70 C71 113.7(11) . . ? O70 C71 C72 106.1(9) . . ? C73 C72 C71 104.6(9) . . ? C72 C73 C74 104.8(8) . . ? O70 C74 C73 106.2(9) . . ? C74' O70' C71' 114.1(15) . . ? O70' C71' C72' 104.1(14) . . ? C73' C72' C71' 104.2(14) . . ? C72' C73' C74' 105.5(12) . . ? O70' C74' C73' 106.2(12) . . ? C71" O70" C74" 114.3(16) . . ? O70" C71" C72" 106.9(13) . . ? C73" C72" C71" 105.8(11) . . ? C72" C73" C74" 106.3(11) . . ? O70" C74" C73" 106.4(12) . . ? _diffrn_measured_fraction_theta_max 0.993 _diffrn_reflns_theta_full 25.00 _diffrn_measured_fraction_theta_full 0.993 _refine_diff_density_max 0.299 _refine_diff_density_min -0.224 _refine_diff_density_rms 0.054 #===END