# Electronic Supplementary Material (ESI) for Organic and Biomolecular Chemistry # This journal is © The Royal Society of Chemistry 2011 data_global _journal_name_full Org.Biomol.Chem. _journal_coden_cambridge 0177 _journal_year ? _journal_volume ? _journal_page_first ? _publ_contact_author_name 'Sanjio S. Zade' _publ_contact_author_email 'gr krishna2005@yahoo.co.in' loop_ _publ_author_name 'Soumyajit Das' 'Anjan Bedi' 'G. Rama Krishna' 'C. Malla Reddy' 'Sanjio S. Zade' data_tmcptt_3b _database_code_depnum_ccdc_archive 'CCDC 827541' #TrackingRef 'cif1112.cif' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety '(C19 H20 O2 S3) (C19 H20 O2 S3)' _chemical_formula_sum 'C38 H40 O4 S6' _chemical_formula_weight 376.5458 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' O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' S S 0.1246 0.1234 '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 5.8122(4) _cell_length_b 17.1465(14) _cell_length_c 36.266(3) _cell_angle_alpha 90.00 _cell_angle_beta 93.2950(10) _cell_angle_gamma 90.00 _cell_volume 3608.3(5) _cell_formula_units_Z 8 _cell_measurement_temperature 100(2) _cell_measurement_reflns_used 9921 _cell_measurement_theta_min 2.25 _cell_measurement_theta_max 30.83 _exptl_crystal_description needle _exptl_crystal_colour red _exptl_crystal_size_max 0.006 _exptl_crystal_size_mid 0.004 _exptl_crystal_size_min 0.002 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.353 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 1547.0 _exptl_absorpt_coefficient_mu 0.419 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_correction_T_min 0.998 _exptl_absorpt_correction_T_max 0.999 _exptl_absorpt_process_details 'Multiscan absorption correction' _exptl_special_details ; ? ; _diffrn_ambient_temperature 100(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 Kappa APEX-II CCD DUO' _diffrn_measurement_method 'phi and omega scans' _diffrn_detector_area_resol_mean ? _diffrn_reflns_number 58663 _diffrn_reflns_av_R_equivalents 0.0402 _diffrn_reflns_av_sigmaI/netI 0.0280 _diffrn_reflns_limit_h_min -8 _diffrn_reflns_limit_h_max 8 _diffrn_reflns_limit_k_min -24 _diffrn_reflns_limit_k_max 24 _diffrn_reflns_limit_l_min -52 _diffrn_reflns_limit_l_max 49 _diffrn_reflns_theta_min 1.12 _diffrn_reflns_theta_max 30.83 _reflns_number_total 11215 _reflns_number_gt 9727 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'Bruker APEX2' _computing_cell_refinement 'Bruker SAINT' _computing_data_reduction 'Bruker SAINT' _computing_structure_solution 'SHELXS-97 (Sheldrick, 2008)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 2008)' _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^)+(0.2000P)^2^+0.7000P] 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 constr _refine_ls_extinction_method SHELXL _refine_ls_extinction_coef 0.0000(16) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_number_reflns 11215 _refine_ls_number_parameters 385 _refine_ls_number_restraints 6 _refine_ls_R_factor_all 0.1638 _refine_ls_R_factor_gt 0.1515 _refine_ls_wR_factor_ref 0.5028 _refine_ls_wR_factor_gt 0.4817 _refine_ls_goodness_of_fit_ref 2.401 _refine_ls_restrained_S_all 2.510 _refine_ls_shift/su_max 2.159 _refine_ls_shift/su_mean 0.006 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 C1 C 0.7314(8) 0.4614(3) 0.95442(12) 0.0123(5) Uani 1 1 d . . . H1 H 0.7707 0.4383 0.9771 0.015 Uiso 1 1 calc R . . C2 C 0.5258(8) 0.5018(3) 0.94741(11) 0.0123(5) Uani 1 1 d D . . H2 H 0.4186 0.5072 0.9653 0.015 Uiso 1 1 calc R . . C3 C 0.4850(8) 0.5364(3) 0.90935(11) 0.0123(5) Uani 1 1 d D . . H3 H 0.3606 0.5647 0.8991 0.015 Uiso 1 1 calc R . . C4 C 0.7133(8) 0.5107(3) 0.89249(12) 0.0123(5) Uani 1 1 d D . . C5 C 0.7775(8) 0.5280(3) 0.85434(13) 0.0124(8) Uani 1 1 d . . . C6 C 0.6786(8) 0.5820(3) 0.83074(13) 0.0122(8) Uani 1 1 d . . . C7 C 0.4918(8) 0.6420(3) 0.83302(13) 0.0127(8) Uani 1 1 d . . . H7A H 0.4997 0.6675 0.8569 0.015 Uiso 1 1 calc R . . H7B H 0.3405 0.6188 0.8286 0.015 Uiso 1 1 calc R . . C8 C 0.5456(7) 0.7002(3) 0.80177(13) 0.0108(8) Uani 1 1 d . . . C9 C 0.3295(8) 0.7389(3) 0.78572(14) 0.0139(9) Uani 1 1 d . . . H9A H 0.2204 0.6994 0.7768 0.017 Uiso 1 1 calc R . . H9B H 0.2588 0.7688 0.8048 0.017 Uiso 1 1 calc R . . C10 C 0.1845(10) 0.8278(4) 0.74146(17) 0.0251(11) Uani 1 1 d . . . H10A H 0.0865 0.8412 0.7609 0.038 Uiso 1 1 calc R . . H10B H 0.1021 0.7945 0.7240 0.038 Uiso 1 1 calc R . . H10C H 0.2306 0.8744 0.7292 0.038 Uiso 1 1 calc R . . C11 C 0.7707(11) 0.8562(3) 0.86406(19) 0.0278(13) Uani 1 1 d . . . H11A H 0.8472 0.8851 0.8457 0.042 Uiso 1 1 calc R . . H11B H 0.8827 0.8281 0.8793 0.042 Uiso 1 1 calc R . . H11C H 0.6885 0.8916 0.8791 0.042 Uiso 1 1 calc R . . C12 C 0.7148(8) 0.7620(3) 0.81751(14) 0.0143(9) Uani 1 1 d . . . H12A H 0.8562 0.7371 0.8269 0.017 Uiso 1 1 calc R . . H12B H 0.7523 0.7982 0.7982 0.017 Uiso 1 1 calc R . . C13 C 0.6723(8) 0.6512(3) 0.77296(12) 0.0122(8) Uani 1 1 d . . . H13A H 0.5648 0.6303 0.7540 0.015 Uiso 1 1 calc R . . H13B H 0.7879 0.6821 0.7614 0.015 Uiso 1 1 calc R . . C14 C 0.7818(8) 0.5869(3) 0.79648(13) 0.0123(8) Uani 1 1 d . . . C15 C 0.9596(8) 0.5348(3) 0.79297(12) 0.0115(8) Uani 1 1 d . . . C16 C 1.1109(9) 0.5219(3) 0.76242(14) 0.0168(6) Uani 1 1 d D . . C17 C 1.300(2) 0.4736(10) 0.7610(3) 0.0168(6) Uani 0.261(7) 1 d PD . . H17 H 1.3527 0.4420 0.7806 0.020 Uiso 0.261(7) 1 calc PR . . C18 C 1.4040(9) 0.4770(3) 0.72740(14) 0.0168(6) Uani 1 1 d D . . H18 H 1.5340 0.4484 0.7221 0.020 Uiso 1 1 calc R . . C19 C 1.2922(9) 0.5277(3) 0.70274(14) 0.0168(6) Uani 1 1 d . . . H19 H 1.3374 0.5370 0.6790 0.020 Uiso 1 1 calc R . . C20 C 0.7335(10) 0.2609(3) 1.08402(14) 0.0199(6) Uani 1 1 d . . . H20 H 0.6525 0.2517 1.1050 0.024 Uiso 1 1 calc R . . C21 C 0.9275(10) 0.3071(3) 1.08401(13) 0.0199(6) Uani 1 1 d D . . H21 H 0.9861 0.3310 1.1056 0.024 Uiso 1 1 calc R . . C22 C 1.0377(10) 0.3173(3) 1.04946(13) 0.0199(6) Uani 1 1 d D . . H22 H 1.1682 0.3462 1.0448 0.024 Uiso 1 1 calc R . . C23 C 0.8870(10) 0.2691(3) 1.02317(14) 0.0199(6) Uani 1 1 d D . . C24 C 0.9216(8) 0.2546(3) 0.98357(14) 0.0140(8) Uani 1 1 d . . . C25 C 0.8106(8) 0.2049(3) 0.95830(13) 0.0128(8) Uani 1 1 d . . . C26 C 0.6190(8) 0.1461(3) 0.96001(13) 0.0139(8) Uani 1 1 d . . . H26A H 0.4691 0.1712 0.9584 0.017 Uiso 1 1 calc R . . H26B H 0.6342 0.1155 0.9825 0.017 Uiso 1 1 calc R . . C27 C 0.6560(8) 0.0946(3) 0.92518(13) 0.0112(8) Uani 1 1 d . . . C28 C 0.8247(7) 0.0287(3) 0.93610(13) 0.0120(8) Uani 1 1 d . . . H28A H 0.8593 -0.0011 0.9144 0.014 Uiso 1 1 calc R . . H28B H 0.9676 0.0506 0.9467 0.014 Uiso 1 1 calc R . . C29 C 0.8705(9) -0.0848(3) 0.97135(16) 0.0201(10) Uani 1 1 d . . . H29A H 1.0194 -0.0664 0.9803 0.030 Uiso 1 1 calc R . . H29B H 0.8865 -0.1167 0.9499 0.030 Uiso 1 1 calc R . . H29C H 0.8033 -0.1151 0.9902 0.030 Uiso 1 1 calc R . . C30 C 0.2760(9) -0.0274(4) 0.86495(17) 0.0245(11) Uani 1 1 d . . . H30A H 0.1453 0.0066 0.8612 0.037 Uiso 1 1 calc R . . H30B H 0.2439 -0.0661 0.8831 0.037 Uiso 1 1 calc R . . H30C H 0.3066 -0.0525 0.8421 0.037 Uiso 1 1 calc R . . C31 C 0.4283(8) 0.0605(3) 0.90960(14) 0.0142(9) Uani 1 1 d . . . H31A H 0.3625 0.0270 0.9278 0.017 Uiso 1 1 calc R . . H31B H 0.3197 0.1021 0.9034 0.017 Uiso 1 1 calc R . . C32 C 0.7741(8) 0.1492(3) 0.89766(13) 0.0136(8) Uani 1 1 d . . . H32A H 0.8802 0.1204 0.8831 0.016 Uiso 1 1 calc R . . H32B H 0.6609 0.1751 0.8812 0.016 Uiso 1 1 calc R . . C33 C 0.9010(8) 0.2071(3) 0.92296(13) 0.0135(8) Uani 1 1 d . . . C34 C 1.0807(9) 0.2578(3) 0.92004(13) 0.0143(9) Uani 1 1 d . . . C35 C 1.2185(9) 0.2750(3) 0.88902(14) 0.0150(9) Uani 1 1 d . . . C36 C 1.4137(9) 0.3232(3) 0.88832(15) 0.0194(10) Uani 1 1 d . . . H36 H 1.4764 0.3509 0.9085 0.023 Uiso 1 1 calc R . . C37 C 1.5032(10) 0.3240(3) 0.85254(17) 0.0218(11) Uani 1 1 d . . . H37 H 1.6331 0.3523 0.8470 0.026 Uiso 1 1 calc R . . C38 C 1.3823(10) 0.2800(3) 0.82763(15) 0.0208(10) Uani 1 1 d . . . H38 H 1.4190 0.2750 0.8031 0.025 Uiso 1 1 calc R . . O1 O 0.3811(6) 0.7886(2) 0.75643(11) 0.0179(7) Uani 1 1 d . . . O2 O 0.6122(7) 0.8025(2) 0.84637(11) 0.0194(8) Uani 1 1 d . . . O3 O 0.7267(6) -0.0206(2) 0.96204(11) 0.0186(8) Uani 1 1 d . . . O4 O 0.4716(6) 0.0170(2) 0.87757(10) 0.0175(7) Uani 1 1 d . . . S1 S 0.8953(4) 0.45798(14) 0.92036(6) 0.0459(5) Uani 1 1 d . . . S2 S 0.9997(2) 0.47970(7) 0.83337(3) 0.0139(3) Uani 1 1 d . . . S3 S 1.0624(2) 0.57093(9) 0.72120(4) 0.0099(5) Uani 0.739(7) 1 d P . . S4 S 0.6587(3) 0.22315(12) 1.04264(5) 0.0355(5) Uani 1 1 d . . . S5 S 1.1427(2) 0.30342(7) 0.96257(3) 0.0149(3) Uani 1 1 d . . . S6 S 1.1541(2) 0.23449(9) 0.84590(4) 0.0228(4) Uani 1 1 d . . . 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 C1 0.0185(11) 0.0129(10) 0.0059(9) 0.0022(7) 0.0042(8) 0.0032(8) C2 0.0185(11) 0.0129(10) 0.0059(9) 0.0022(7) 0.0042(8) 0.0032(8) C3 0.0185(11) 0.0129(10) 0.0059(9) 0.0022(7) 0.0042(8) 0.0032(8) C4 0.0185(11) 0.0129(10) 0.0059(9) 0.0022(7) 0.0042(8) 0.0032(8) C5 0.013(2) 0.0109(19) 0.014(2) -0.0005(15) 0.0025(15) -0.0020(14) C6 0.0132(19) 0.0101(18) 0.014(2) 0.0011(15) 0.0038(15) -0.0001(14) C7 0.015(2) 0.0118(19) 0.0119(19) -0.0015(14) 0.0020(15) 0.0006(14) C8 0.0061(17) 0.0102(18) 0.016(2) -0.0019(15) 0.0022(14) -0.0007(13) C9 0.011(2) 0.0135(19) 0.017(2) 0.0002(16) 0.0005(16) 0.0010(15) C10 0.019(2) 0.028(3) 0.027(3) 0.010(2) -0.005(2) 0.005(2) C11 0.030(3) 0.015(2) 0.037(3) -0.007(2) -0.015(2) -0.001(2) C12 0.012(2) 0.015(2) 0.016(2) -0.0006(16) 0.0014(16) -0.0007(15) C13 0.014(2) 0.0132(19) 0.0091(18) 0.0009(15) 0.0011(14) 0.0004(15) C14 0.0134(19) 0.0115(19) 0.0122(19) -0.0029(15) 0.0020(15) 0.0002(15) C15 0.0120(19) 0.0122(19) 0.0104(19) -0.0008(15) 0.0017(14) -0.0012(14) C16 0.0175(13) 0.0189(13) 0.0146(13) -0.0025(10) 0.0053(10) 0.0018(10) C17 0.0175(13) 0.0189(13) 0.0146(13) -0.0025(10) 0.0053(10) 0.0018(10) C18 0.0175(13) 0.0189(13) 0.0146(13) -0.0025(10) 0.0053(10) 0.0018(10) C19 0.0175(13) 0.0189(13) 0.0146(13) -0.0025(10) 0.0053(10) 0.0018(10) C20 0.0281(14) 0.0205(12) 0.0112(11) -0.0030(9) 0.0033(9) 0.0084(10) C21 0.0281(14) 0.0205(12) 0.0112(11) -0.0030(9) 0.0033(9) 0.0084(10) C22 0.0281(14) 0.0205(12) 0.0112(11) -0.0030(9) 0.0033(9) 0.0084(10) C23 0.0281(14) 0.0205(12) 0.0112(11) -0.0030(9) 0.0033(9) 0.0084(10) C24 0.015(2) 0.0100(18) 0.017(2) -0.0004(16) 0.0018(16) 0.0032(15) C25 0.016(2) 0.0093(18) 0.013(2) 0.0012(15) 0.0043(15) 0.0037(15) C26 0.0106(19) 0.016(2) 0.016(2) 0.0007(16) 0.0063(15) 0.0029(15) C27 0.0079(18) 0.0131(19) 0.0129(19) 0.0018(15) 0.0020(14) 0.0007(14) C28 0.0074(18) 0.016(2) 0.0127(19) 0.0018(15) 0.0000(14) 0.0026(14) C29 0.022(2) 0.017(2) 0.021(2) 0.0037(18) 0.0011(18) 0.0028(18) C30 0.012(2) 0.035(3) 0.027(3) -0.007(2) 0.0008(19) -0.0056(19) C31 0.0081(19) 0.018(2) 0.016(2) -0.0019(17) -0.0010(15) 0.0003(15) C32 0.013(2) 0.013(2) 0.015(2) 0.0008(16) 0.0039(16) 0.0007(15) C33 0.016(2) 0.0118(19) 0.013(2) 0.0008(15) 0.0020(16) 0.0031(15) C34 0.018(2) 0.0108(19) 0.015(2) -0.0004(15) 0.0044(16) 0.0032(15) C35 0.017(2) 0.0114(19) 0.017(2) 0.0027(16) 0.0022(16) 0.0007(15) C36 0.021(2) 0.016(2) 0.021(2) 0.0042(18) 0.0037(18) -0.0010(18) C37 0.021(2) 0.018(2) 0.027(3) 0.003(2) 0.010(2) -0.0058(18) C38 0.023(3) 0.023(2) 0.017(2) 0.0060(19) 0.0078(18) -0.0027(19) O1 0.0132(16) 0.0219(18) 0.0190(18) 0.0069(14) 0.0031(13) 0.0041(13) O2 0.0194(18) 0.0178(17) 0.0208(18) -0.0078(14) -0.0007(14) -0.0020(13) O3 0.0151(16) 0.0172(17) 0.0239(19) 0.0087(14) 0.0050(14) 0.0037(13) O4 0.0122(16) 0.0251(18) 0.0153(17) -0.0052(14) 0.0026(12) -0.0046(13) S1 0.0507(12) 0.0515(12) 0.0360(10) 0.0056(8) 0.0060(8) -0.0006(9) S2 0.0164(6) 0.0108(5) 0.0144(6) 0.0002(4) 0.0019(4) 0.0021(4) S3 0.0108(8) 0.0161(8) 0.0030(7) -0.0013(5) 0.0018(4) 0.0052(5) S4 0.0359(9) 0.0410(10) 0.0306(9) -0.0074(7) 0.0092(7) 0.0044(7) S5 0.0169(6) 0.0116(6) 0.0163(6) -0.0002(4) 0.0012(4) -0.0001(4) S6 0.0227(7) 0.0315(8) 0.0143(6) 0.0022(5) 0.0018(5) -0.0083(5) _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 C1 C2 1.392(6) . ? C1 S1 1.604(5) . ? C2 C3 1.508(5) . ? C3 C4 1.557(6) . ? C4 C5 1.483(6) . ? C4 S1 1.684(5) . ? C5 C6 1.365(6) . ? C5 S2 1.745(5) . ? C6 C14 1.413(6) . ? C6 C7 1.502(6) . ? C7 C8 1.555(7) . ? C8 C9 1.508(6) . ? C8 C12 1.533(6) . ? C8 C13 1.558(6) . ? C9 O1 1.407(6) . ? C10 O1 1.407(6) . ? C11 O2 1.429(6) . ? C12 O2 1.416(6) . ? C13 C14 1.512(6) . ? C14 C15 1.378(6) . ? C15 C16 1.470(7) . ? C15 S2 1.748(5) . ? C16 C17 1.379(9) . ? C16 S3 1.724(5) . ? C17 C18 1.393(9) . ? C18 C19 1.382(7) . ? C19 S3 1.698(5) . ? C20 C21 1.378(9) . ? C20 S4 1.669(5) . ? C21 C22 1.450(6) . ? C22 C23 1.504(6) . ? C23 C24 1.483(7) . ? C23 S4 1.729(6) . ? C24 C25 1.384(7) . ? C24 S5 1.745(5) . ? C25 C33 1.413(6) . ? C25 C26 1.506(7) . ? C26 C27 1.566(7) . ? C27 C31 1.525(6) . ? C27 C28 1.533(6) . ? C27 C32 1.556(7) . ? C28 O3 1.409(6) . ? C29 O3 1.412(6) . ? C30 O4 1.421(6) . ? C31 O4 1.415(6) . ? C32 C33 1.515(7) . ? C33 C34 1.367(7) . ? C34 C35 1.448(7) . ? C34 S5 1.749(5) . ? C35 C36 1.405(7) . ? C35 S6 1.733(5) . ? C36 C37 1.425(8) . ? C37 C38 1.344(8) . ? C38 S6 1.706(5) . ? 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 C2 C1 S1 114.8(3) . . ? C1 C2 C3 116.8(4) . . ? C2 C3 C4 98.9(3) . . ? C5 C4 C3 125.2(4) . . ? C5 C4 S1 118.9(3) . . ? C3 C4 S1 115.9(3) . . ? C6 C5 C4 126.9(4) . . ? C6 C5 S2 110.1(4) . . ? C4 C5 S2 123.0(3) . . ? C5 C6 C14 114.0(4) . . ? C5 C6 C7 135.2(4) . . ? C14 C6 C7 110.6(4) . . ? C6 C7 C8 102.9(4) . . ? C9 C8 C12 110.0(4) . . ? C9 C8 C7 111.5(4) . . ? C12 C8 C7 108.9(4) . . ? C9 C8 C13 113.2(4) . . ? C12 C8 C13 107.7(4) . . ? C7 C8 C13 105.4(3) . . ? O1 C9 C8 110.4(4) . . ? O2 C12 C8 109.0(4) . . ? C14 C13 C8 102.4(4) . . ? C15 C14 C6 113.6(4) . . ? C15 C14 C13 135.6(4) . . ? C6 C14 C13 110.7(4) . . ? C14 C15 C16 130.7(4) . . ? C14 C15 S2 109.7(3) . . ? C16 C15 S2 119.6(4) . . ? C17 C16 C15 129.1(6) . . ? C17 C16 S3 110.6(6) . . ? C15 C16 S3 120.3(4) . . ? C16 C17 C18 113.2(9) . . ? C19 C18 C17 112.4(6) . . ? C18 C19 S3 111.7(4) . . ? C21 C20 S4 113.2(4) . . ? C20 C21 C22 118.1(5) . . ? C21 C22 C23 102.2(5) . . ? C24 C23 C22 126.9(5) . . ? C24 C23 S4 118.0(4) . . ? C22 C23 S4 115.1(4) . . ? C25 C24 C23 131.4(5) . . ? C25 C24 S5 109.5(4) . . ? C23 C24 S5 119.1(4) . . ? C24 C25 C33 113.6(4) . . ? C24 C25 C26 134.6(4) . . ? C33 C25 C26 111.7(4) . . ? C25 C26 C27 102.0(4) . . ? C31 C27 C28 109.9(4) . . ? C31 C27 C32 113.5(4) . . ? C28 C27 C32 108.0(4) . . ? C31 C27 C26 111.0(4) . . ? C28 C27 C26 108.8(4) . . ? C32 C27 C26 105.3(4) . . ? O3 C28 C27 109.7(4) . . ? O4 C31 C27 108.4(4) . . ? C33 C32 C27 102.9(4) . . ? C34 C33 C25 114.4(4) . . ? C34 C33 C32 135.8(4) . . ? C25 C33 C32 109.7(4) . . ? C33 C34 C35 130.5(5) . . ? C33 C34 S5 109.6(4) . . ? C35 C34 S5 119.9(4) . . ? C36 C35 C34 128.1(5) . . ? C36 C35 S6 110.6(4) . . ? C34 C35 S6 121.2(4) . . ? C35 C36 C37 111.1(5) . . ? C38 C37 C36 113.7(5) . . ? C37 C38 S6 112.6(4) . . ? C10 O1 C9 112.1(4) . . ? C12 O2 C11 111.1(5) . . ? C28 O3 C29 111.8(4) . . ? C31 O4 C30 111.7(4) . . ? C1 S1 C4 93.6(3) . . ? C5 S2 C15 92.4(2) . . ? C19 S3 C16 92.1(2) . . ? C20 S4 C23 91.4(3) . . ? C24 S5 C34 92.9(2) . . ? C38 S6 C35 92.0(3) . . ? _diffrn_measured_fraction_theta_max 0.988 _diffrn_reflns_theta_full 30.83 _diffrn_measured_fraction_theta_full 0.988 _refine_diff_density_max 12.087 _refine_diff_density_min -3.215 _refine_diff_density_rms 0.299 data_ssz_ab_dbmtcpt_b _database_code_depnum_ccdc_archive 'CCDC 827542' #TrackingRef 'cif1112.cif' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety ? _chemical_formula_sum 'C19 H18 Br2 O2 S2 Se' _chemical_formula_weight 581.23 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' O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Se Se -0.0929 2.2259 '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)/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 5.7974(7) _cell_length_b 17.042(2) _cell_length_c 41.927(5) _cell_angle_alpha 90.00 _cell_angle_beta 90.920(5) _cell_angle_gamma 90.00 _cell_volume 4141.9(9) _cell_formula_units_Z 8 _cell_measurement_temperature 296(2) _cell_measurement_reflns_used 9968 _cell_measurement_theta_min 2.28 _cell_measurement_theta_max 23.91 _exptl_crystal_description needle _exptl_crystal_colour yellow _exptl_crystal_size_max 0.01 _exptl_crystal_size_mid 0.0011 _exptl_crystal_size_min 0.00054 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.864 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 2272 _exptl_absorpt_coefficient_mu 5.885 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_correction_T_min 0.992 _exptl_absorpt_correction_T_max 0.997 _exptl_absorpt_process_details 'multi-scan absorption correction' _exptl_special_details ; ? ; _diffrn_ambient_temperature 296(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 APEX-II CCD' _diffrn_measurement_method '\ f and \ w scans' _diffrn_detector_area_resol_mean ? _diffrn_reflns_number 59499 _diffrn_reflns_av_R_equivalents 0.0799 _diffrn_reflns_av_sigmaI/netI 0.0723 _diffrn_reflns_limit_h_min -7 _diffrn_reflns_limit_h_max 7 _diffrn_reflns_limit_k_min -21 _diffrn_reflns_limit_k_max 21 _diffrn_reflns_limit_l_min -53 _diffrn_reflns_limit_l_max 53 _diffrn_reflns_theta_min 0.97 _diffrn_reflns_theta_max 27.00 _reflns_number_total 8987 _reflns_number_gt 5631 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'Bruker APEX2' _computing_cell_refinement 'Bruker SAINT' _computing_data_reduction 'Bruker SAINT' _computing_structure_solution 'SHELXS-97 (Sheldrick, 2008)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 2008)' _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^)+(0.1000P)^2^+0.1682P] 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 constr _refine_ls_extinction_method none _refine_ls_extinction_coef ? _refine_ls_number_reflns 8987 _refine_ls_number_parameters 473 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.0983 _refine_ls_R_factor_gt 0.0467 _refine_ls_wR_factor_ref 0.1575 _refine_ls_wR_factor_gt 0.1240 _refine_ls_goodness_of_fit_ref 0.937 _refine_ls_restrained_S_all 0.937 _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 Se1 Se 1.16687(10) 0.67918(3) 0.025468(13) 0.03668(17) Uani 1 1 d . . . Se2 Se 1.22122(10) 0.50768(3) 0.177393(13) 0.03507(17) Uani 1 1 d . . . Br2 Br 1.56789(12) 0.70250(4) 0.186149(16) 0.0547(2) Uani 1 1 d . . . Br1 Br 0.46080(12) 0.78618(4) -0.107478(16) 0.0548(2) Uani 1 1 d . . . Br3 Br 0.50620(12) 0.45902(5) 0.040363(15) 0.0590(2) Uani 1 1 d . . . Br4 Br 1.67151(12) 0.41473(5) 0.330772(15) 0.0565(2) Uani 1 1 d . . . S1 S 0.6052(3) 0.78148(10) -0.03668(4) 0.0418(4) Uani 1 1 d . . . S4 S 1.3197(3) 0.40210(9) 0.27500(3) 0.0408(4) Uani 1 1 d . . . S2 S 1.2313(3) 0.73831(10) 0.12983(3) 0.0428(4) Uani 1 1 d . . . S3 S 0.6510(3) 0.43219(9) 0.11081(3) 0.0395(4) Uani 1 1 d . . . C14 C 0.9497(9) 0.7796(3) 0.06379(12) 0.0292(12) Uani 1 1 d . . . C5 C 0.9225(9) 0.7414(3) 0.01009(12) 0.0301(12) Uani 1 1 d . . . C6 C 0.8373(9) 0.7864(3) 0.03361(13) 0.0286(12) Uani 1 1 d . . . C4 C 0.8551(10) 0.7371(3) -0.02288(13) 0.0345(13) Uani 1 1 d . . . C13 C 0.8497(9) 0.8355(3) 0.08694(12) 0.0317(13) Uani 1 1 d . . . H13A H 0.9700 0.8618 0.0992 0.038 Uiso 1 1 calc R . . H13B H 0.7474 0.8088 0.1015 0.038 Uiso 1 1 calc R . . C9 C 0.8787(9) 0.9614(3) 0.05738(13) 0.0322(13) Uani 1 1 d . . . H9A H 0.9218 0.9900 0.0766 0.039 Uiso 1 1 calc R . . H9B H 1.0179 0.9405 0.0481 0.039 Uiso 1 1 calc R . . C7 C 0.6535(8) 0.8473(3) 0.03500(12) 0.0312(13) Uani 1 1 d . . . H7A H 0.5022 0.8234 0.0365 0.037 Uiso 1 1 calc R . . H7B H 0.6562 0.8809 0.0163 0.037 Uiso 1 1 calc R . . C8 C 0.7152(8) 0.8943(3) 0.06571(12) 0.0279(12) Uani 1 1 d . . . C11 C 0.5044(9) 0.9257(3) 0.08089(13) 0.0357(13) Uani 1 1 d . . . H11A H 0.4273 0.9625 0.0666 0.043 Uiso 1 1 calc R . . H11B H 0.3984 0.8833 0.0854 0.043 Uiso 1 1 calc R . . C15 C 1.1275(9) 0.7269(3) 0.06532(13) 0.0318(13) Uani 1 1 d . . . C18 C 1.5908(11) 0.6569(3) 0.12063(15) 0.0447(16) Uani 1 1 d . . . H18 H 1.7286 0.6299 0.1239 0.054 Uiso 1 1 calc R . . C2 C 0.8555(11) 0.7138(4) -0.07745(15) 0.0493(17) Uani 1 1 d . . . H2 H 0.9085 0.6946 -0.0967 0.059 Uiso 1 1 calc R . . C17 C 1.4793(10) 0.6632(3) 0.09100(14) 0.0373(14) Uani 1 1 d . . . H17 H 1.5348 0.6398 0.0726 0.045 Uiso 1 1 calc R . . C3 C 0.9701(11) 0.7030(4) -0.04840(14) 0.0467(16) Uani 1 1 d . . . H3 H 1.1087 0.6759 -0.0462 0.056 Uiso 1 1 calc R . . C12 C 0.3823(11) 0.9989(4) 0.12473(17) 0.062(2) Uani 1 1 d . . . H12A H 0.3123 1.0371 0.1108 0.093 Uiso 1 1 calc R . . H12B H 0.4355 1.0242 0.1439 0.093 Uiso 1 1 calc R . . H12C H 0.2709 0.9594 0.1299 0.093 Uiso 1 1 calc R . . C16 C 1.2819(9) 0.7068(3) 0.09132(13) 0.0327(13) Uani 1 1 d . . . C19 C 1.4771(10) 0.6940(3) 0.14378(14) 0.0381(14) Uani 1 1 d . . . C1 C 0.6611(10) 0.7549(4) -0.07458(13) 0.0401(15) Uani 1 1 d . . . C10 C 0.9051(12) 1.0787(4) 0.02977(18) 0.062(2) Uani 1 1 d . . . H10A H 0.9335 1.1062 0.0494 0.093 Uiso 1 1 calc R . . H10B H 0.8259 1.1127 0.0150 0.093 Uiso 1 1 calc R . . H10C H 1.0492 1.0626 0.0209 0.093 Uiso 1 1 calc R . . O2 O 0.5708(6) 0.9637(3) 0.10934(9) 0.0440(11) Uani 1 1 d . . . O1 O 0.7680(6) 1.0120(2) 0.03563(10) 0.0421(10) Uani 1 1 d . . . C26 C 0.7118(8) 0.3362(3) 0.17824(12) 0.0264(12) Uani 1 1 d . . . H26A H 0.7068 0.3108 0.1575 0.032 Uiso 1 1 calc R . . H26B H 0.5618 0.3588 0.1824 0.032 Uiso 1 1 calc R . . C23 C 0.9086(9) 0.4664(3) 0.12649(13) 0.0312(13) Uani 1 1 d . . . C32 C 0.9177(9) 0.3282(3) 0.22908(12) 0.0299(12) Uani 1 1 d . . . H32A H 0.8159 0.3484 0.2453 0.036 Uiso 1 1 calc R . . H32B H 1.0399 0.2981 0.2394 0.036 Uiso 1 1 calc R . . C34 C 1.1906(9) 0.4453(3) 0.21422(12) 0.0293(12) Uani 1 1 d . . . C24 C 0.9763(9) 0.4507(3) 0.15941(13) 0.0312(13) Uani 1 1 d . . . C25 C 0.8966(9) 0.3972(3) 0.17973(12) 0.0274(12) Uani 1 1 d . . . C35 C 1.3467(9) 0.4556(3) 0.24030(12) 0.0319(13) Uani 1 1 d . . . C30 C 0.5783(8) 0.2382(3) 0.21861(12) 0.0299(12) Uani 1 1 d . . . H30A H 0.4706 0.2774 0.2261 0.036 Uiso 1 1 calc R . . H30B H 0.5006 0.2069 0.2024 0.036 Uiso 1 1 calc R . . C22 C 1.0267(10) 0.5062(3) 0.10354(13) 0.0364(14) Uani 1 1 d . . . H22 H 1.1701 0.5292 0.1073 0.044 Uiso 1 1 calc R . . C28 C 0.9470(9) 0.2181(3) 0.19095(12) 0.0286(12) Uani 1 1 d . . . H28A H 1.0796 0.2447 0.1822 0.034 Uiso 1 1 calc R . . H28B H 1.0014 0.1831 0.2077 0.034 Uiso 1 1 calc R . . C33 C 1.0137(9) 0.3927(3) 0.20976(12) 0.0290(12) Uani 1 1 d . . . C36 C 1.5343(10) 0.5040(4) 0.24275(14) 0.0421(15) Uani 1 1 d . . . H36 H 1.5776 0.5380 0.2266 0.051 Uiso 1 1 calc R . . C20 C 0.7113(10) 0.4717(4) 0.07426(13) 0.0396(15) Uani 1 1 d . . . C38 C 1.5612(10) 0.4438(4) 0.29099(13) 0.0397(15) Uani 1 1 d . . . C27 C 0.7835(8) 0.2778(3) 0.20468(12) 0.0271(12) Uani 1 1 d . . . C31 C 0.4612(11) 0.1545(4) 0.25899(18) 0.067(2) Uani 1 1 d . . . H31A H 0.3676 0.1942 0.2686 0.100 Uiso 1 1 calc R . . H31B H 0.5165 0.1189 0.2751 0.100 Uiso 1 1 calc R . . H31C H 0.3708 0.1262 0.2434 0.100 Uiso 1 1 calc R . . C21 C 0.9154(11) 0.5092(4) 0.07456(14) 0.0453(16) Uani 1 1 d . . . H21 H 0.9748 0.5346 0.0569 0.054 Uiso 1 1 calc R . . C29 C 0.9862(11) 0.1222(4) 0.15193(17) 0.0551(18) Uani 1 1 d . . . H29A H 1.0957 0.1513 0.1397 0.083 Uiso 1 1 calc R . . H29B H 0.8997 0.0880 0.1380 0.083 Uiso 1 1 calc R . . H29C H 1.0664 0.0915 0.1678 0.083 Uiso 1 1 calc R . . C37 C 1.6544(11) 0.4976(4) 0.27163(15) 0.0484(16) Uani 1 1 d . . . H37 H 1.7842 0.5272 0.2769 0.058 Uiso 1 1 calc R . . O3 O 0.8352(6) 0.1743(2) 0.16692(9) 0.0408(10) Uani 1 1 d . . . O4 O 0.6488(6) 0.1899(2) 0.24411(9) 0.0424(10) Uani 1 1 d . . . 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 Se1 0.0440(4) 0.0312(3) 0.0349(3) -0.0019(2) 0.0042(3) 0.0057(3) Se2 0.0440(4) 0.0289(3) 0.0324(3) 0.0018(2) 0.0025(3) -0.0052(3) Br2 0.0595(4) 0.0617(5) 0.0426(4) 0.0112(3) -0.0113(3) -0.0058(3) Br1 0.0646(5) 0.0602(5) 0.0391(4) 0.0013(3) -0.0146(3) -0.0099(4) Br3 0.0668(5) 0.0764(5) 0.0336(4) 0.0049(3) -0.0099(3) 0.0090(4) Br4 0.0649(5) 0.0690(5) 0.0353(4) 0.0001(3) -0.0097(3) 0.0066(4) S1 0.0399(9) 0.0527(10) 0.0328(8) -0.0066(7) -0.0041(7) 0.0035(7) S4 0.0478(9) 0.0469(9) 0.0278(8) 0.0010(7) 0.0000(7) -0.0110(7) S2 0.0421(9) 0.0530(10) 0.0333(8) 0.0042(7) 0.0012(7) 0.0128(8) S3 0.0424(9) 0.0469(9) 0.0293(8) 0.0086(7) -0.0006(7) -0.0039(7) C14 0.031(3) 0.028(3) 0.029(3) 0.007(2) -0.001(2) -0.003(2) C5 0.031(3) 0.027(3) 0.031(3) 0.001(2) 0.000(2) -0.005(2) C6 0.028(3) 0.025(3) 0.033(3) 0.000(2) 0.001(2) -0.002(2) C4 0.041(3) 0.028(3) 0.034(3) -0.003(2) 0.000(3) -0.006(3) C13 0.030(3) 0.039(3) 0.026(3) -0.001(2) 0.003(2) -0.002(3) C9 0.029(3) 0.037(3) 0.031(3) 0.000(3) -0.001(2) 0.002(3) C7 0.024(3) 0.038(3) 0.031(3) -0.002(2) -0.004(2) -0.007(2) C8 0.025(3) 0.030(3) 0.029(3) -0.002(2) 0.002(2) -0.001(2) C11 0.030(3) 0.043(4) 0.034(3) -0.002(3) 0.000(3) -0.001(3) C15 0.031(3) 0.030(3) 0.035(3) 0.007(2) -0.002(2) -0.002(3) C18 0.039(4) 0.033(3) 0.062(4) 0.010(3) -0.004(3) 0.006(3) C2 0.055(4) 0.060(4) 0.033(4) -0.010(3) 0.001(3) 0.004(4) C17 0.043(4) 0.035(3) 0.035(3) 0.000(3) -0.009(3) 0.007(3) C3 0.056(4) 0.046(4) 0.038(4) -0.008(3) 0.000(3) -0.004(3) C12 0.052(4) 0.071(5) 0.063(5) -0.024(4) 0.015(4) 0.018(4) C16 0.035(3) 0.031(3) 0.033(3) -0.001(2) 0.004(3) -0.003(3) C19 0.037(3) 0.039(3) 0.038(3) 0.011(3) -0.002(3) -0.005(3) C1 0.050(4) 0.042(4) 0.028(3) -0.008(3) -0.006(3) -0.011(3) C10 0.070(5) 0.036(4) 0.079(5) 0.018(4) 0.013(4) -0.008(4) O2 0.030(2) 0.058(3) 0.043(2) -0.017(2) -0.0008(18) 0.015(2) O1 0.038(2) 0.038(2) 0.051(3) 0.012(2) -0.004(2) -0.0012(19) C26 0.027(3) 0.025(3) 0.027(3) -0.001(2) -0.003(2) 0.003(2) C23 0.037(3) 0.024(3) 0.032(3) 0.006(2) 0.002(3) 0.008(2) C32 0.029(3) 0.035(3) 0.027(3) 0.008(2) 0.001(2) -0.001(2) C34 0.035(3) 0.028(3) 0.025(3) -0.001(2) 0.003(2) 0.002(2) C24 0.032(3) 0.025(3) 0.037(3) -0.001(2) 0.004(2) 0.005(2) C25 0.028(3) 0.028(3) 0.026(3) 0.001(2) 0.001(2) 0.007(2) C35 0.041(3) 0.024(3) 0.030(3) -0.002(2) -0.003(3) -0.001(3) C30 0.023(3) 0.040(3) 0.027(3) 0.002(2) 0.002(2) 0.005(2) C22 0.031(3) 0.045(4) 0.033(3) 0.013(3) 0.005(3) 0.000(3) C28 0.025(3) 0.033(3) 0.027(3) 0.002(2) -0.004(2) 0.006(2) C33 0.029(3) 0.031(3) 0.027(3) -0.003(2) 0.004(2) 0.003(2) C36 0.049(4) 0.042(4) 0.036(3) 0.005(3) -0.004(3) -0.005(3) C20 0.044(4) 0.046(4) 0.029(3) 0.004(3) 0.000(3) 0.018(3) C38 0.043(4) 0.048(4) 0.028(3) -0.007(3) -0.004(3) 0.005(3) C27 0.020(3) 0.030(3) 0.032(3) 0.003(2) -0.001(2) 0.006(2) C31 0.043(4) 0.083(6) 0.075(5) 0.041(4) 0.016(4) -0.010(4) C21 0.048(4) 0.056(4) 0.032(3) 0.016(3) 0.013(3) 0.000(3) C29 0.057(4) 0.047(4) 0.061(4) -0.015(3) 0.010(3) 0.016(3) C37 0.044(4) 0.051(4) 0.050(4) -0.003(3) -0.008(3) -0.010(3) O3 0.036(2) 0.044(2) 0.042(2) -0.0131(19) 0.0002(19) 0.0112(19) O4 0.033(2) 0.047(3) 0.047(3) 0.018(2) 0.0024(19) -0.0053(19) _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 Se1 C15 1.876(6) . ? Se1 C5 1.876(5) . ? Se2 C24 1.869(6) . ? Se2 C34 1.886(5) . ? Br2 C19 1.850(6) . ? Br1 C1 1.866(6) . ? Br3 C20 1.851(6) . ? Br4 C38 1.845(6) . ? S1 C1 1.689(6) . ? S1 C4 1.726(6) . ? S4 C38 1.699(6) . ? S4 C35 1.726(5) . ? S2 C19 1.708(6) . ? S2 C16 1.732(6) . ? S3 C20 1.715(6) . ? S3 C23 1.723(6) . ? C14 C15 1.368(7) . ? C14 C6 1.419(7) . ? C14 C13 1.485(7) . ? C5 C6 1.349(7) . ? C5 C4 1.432(7) . ? C6 C7 1.488(7) . ? C4 C3 1.397(8) . ? C13 C8 1.543(7) . ? C9 O1 1.403(6) . ? C9 C8 1.530(7) . ? C7 C8 1.553(7) . ? C8 C11 1.487(7) . ? C11 O2 1.406(6) . ? C15 C16 1.441(8) . ? C18 C19 1.340(8) . ? C18 C17 1.395(8) . ? C2 C1 1.334(8) . ? C2 C3 1.390(9) . ? C17 C16 1.364(8) . ? C12 O2 1.412(7) . ? C10 O1 1.411(7) . ? C26 C25 1.495(7) . ? C26 C27 1.542(7) . ? C23 C22 1.370(7) . ? C23 C24 1.454(7) . ? C32 C33 1.480(7) . ? C32 C27 1.537(7) . ? C34 C33 1.372(7) . ? C34 C35 1.419(7) . ? C24 C25 1.335(7) . ? C25 C33 1.423(7) . ? C35 C36 1.367(8) . ? C30 O4 1.406(6) . ? C30 C27 1.494(7) . ? C22 C21 1.368(8) . ? C28 O3 1.404(6) . ? C28 C27 1.511(7) . ? C36 C37 1.391(8) . ? C20 C21 1.345(8) . ? C38 C37 1.343(8) . ? C31 O4 1.399(7) . ? C29 O3 1.403(6) . ? 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 C15 Se1 C5 87.7(2) . . ? C24 Se2 C34 87.5(2) . . ? C1 S1 C4 91.4(3) . . ? C38 S4 C35 91.5(3) . . ? C19 S2 C16 91.7(3) . . ? C20 S3 C23 91.2(3) . . ? C15 C14 C6 115.6(5) . . ? C15 C14 C13 133.8(5) . . ? C6 C14 C13 110.6(4) . . ? C6 C5 C4 129.6(5) . . ? C6 C5 Se1 110.7(4) . . ? C4 C5 Se1 119.7(4) . . ? C5 C6 C14 115.9(5) . . ? C5 C6 C7 134.0(5) . . ? C14 C6 C7 110.0(5) . . ? C3 C4 C5 129.4(5) . . ? C3 C4 S1 109.5(4) . . ? C5 C4 S1 121.0(4) . . ? C14 C13 C8 103.8(4) . . ? O1 C9 C8 109.2(4) . . ? C6 C7 C8 103.7(4) . . ? C11 C8 C9 110.2(4) . . ? C11 C8 C13 113.5(4) . . ? C9 C8 C13 107.9(4) . . ? C11 C8 C7 111.2(4) . . ? C9 C8 C7 109.4(4) . . ? C13 C8 C7 104.5(4) . . ? O2 C11 C8 108.3(4) . . ? C14 C15 C16 130.6(5) . . ? C14 C15 Se1 110.2(4) . . ? C16 C15 Se1 119.2(4) . . ? C19 C18 C17 112.4(6) . . ? C1 C2 C3 112.5(6) . . ? C16 C17 C18 114.2(5) . . ? C2 C3 C4 112.9(6) . . ? C17 C16 C15 129.3(5) . . ? C17 C16 S2 109.4(4) . . ? C15 C16 S2 121.3(4) . . ? C18 C19 S2 112.2(5) . . ? C18 C19 Br2 126.6(5) . . ? S2 C19 Br2 121.1(4) . . ? C2 C1 S1 113.6(5) . . ? C2 C1 Br1 126.8(5) . . ? S1 C1 Br1 119.5(4) . . ? C11 O2 C12 112.3(4) . . ? C9 O1 C10 110.8(5) . . ? C25 C26 C27 103.6(4) . . ? C22 C23 C24 128.9(5) . . ? C22 C23 S3 109.8(4) . . ? C24 C23 S3 121.3(4) . . ? C33 C32 C27 104.0(4) . . ? C33 C34 C35 130.7(5) . . ? C33 C34 Se2 109.7(4) . . ? C35 C34 Se2 119.6(4) . . ? C25 C24 C23 129.8(5) . . ? C25 C24 Se2 111.4(4) . . ? C23 C24 Se2 118.6(4) . . ? C24 C25 C33 115.9(5) . . ? C24 C25 C26 134.7(5) . . ? C33 C25 C26 109.3(4) . . ? C36 C35 C34 129.0(5) . . ? C36 C35 S4 109.7(4) . . ? C34 C35 S4 121.2(4) . . ? O4 C30 C27 109.7(4) . . ? C21 C22 C23 114.1(5) . . ? O3 C28 C27 110.3(4) . . ? C34 C33 C25 115.4(5) . . ? C34 C33 C32 134.2(5) . . ? C25 C33 C32 110.3(5) . . ? C35 C36 C37 113.9(6) . . ? C21 C20 S3 111.7(4) . . ? C21 C20 Br3 128.1(5) . . ? S3 C20 Br3 120.2(4) . . ? C37 C38 S4 112.6(5) . . ? C37 C38 Br4 126.4(5) . . ? S4 C38 Br4 121.0(4) . . ? C30 C27 C28 110.7(4) . . ? C30 C27 C32 112.9(4) . . ? C28 C27 C32 108.4(4) . . ? C30 C27 C26 111.4(4) . . ? C28 C27 C26 108.9(4) . . ? C32 C27 C26 104.2(4) . . ? C20 C21 C22 113.1(5) . . ? C38 C37 C36 112.2(6) . . ? C29 O3 C28 112.0(4) . . ? C31 O4 C30 111.9(4) . . ? _diffrn_measured_fraction_theta_max 0.992 _diffrn_reflns_theta_full 27.00 _diffrn_measured_fraction_theta_full 0.992 _refine_diff_density_max 0.899 _refine_diff_density_min -0.774 _refine_diff_density_rms 0.124