# Supplementary Material (ESI) for Chemical Communications # This journal is (c) The Royal Society of Chemistry 2010 data_global _journal_name_full Chem.Commun. _journal_coden_cambridge 0182 _journal_year ? _journal_volume ? _journal_page_first ? _publ_contact_author_name 'Siyu Ye' _publ_contact_author_email sivyerty@pku.edu.cn loop_ _publ_author_name 'Zhixiang Yu' 'Siyu Ye' data_sa750 _database_code_depnum_ccdc_archive 'CCDC 795984' #TrackingRef 'product-3g.cif' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety 'C26 H21 N O4' _chemical_formula_sum 'C26 H21 N O4' _chemical_formula_weight 411.44 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' N N 0.0061 0.0033 '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' _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 8.3226(18) _cell_length_b 13.634(3) _cell_length_c 18.604(4) _cell_angle_alpha 90.00 _cell_angle_beta 102.480(3) _cell_angle_gamma 90.00 _cell_volume 2061.1(8) _cell_formula_units_Z 4 _cell_measurement_temperature 173(2) _cell_measurement_reflns_used 616 _cell_measurement_theta_min 2.17 _cell_measurement_theta_max 27.48 _exptl_crystal_description block _exptl_crystal_colour colorless _exptl_crystal_size_max 0.24 _exptl_crystal_size_mid 0.16 _exptl_crystal_size_min 0.15 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.326 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 864 _exptl_absorpt_coefficient_mu 0.090 _exptl_absorpt_correction_type numerical _exptl_absorpt_correction_T_min 0.9788 _exptl_absorpt_correction_T_max 0.9867 _exptl_absorpt_process_details 'CrystalClear (Rigaku Inc., 2007)' _exptl_special_details ; ? ; _diffrn_ambient_temperature 173(2) _diffrn_radiation_wavelength 0.71073 _diffrn_radiation_type MoK\a _diffrn_radiation_source 'sealed tube' _diffrn_radiation_monochromator graphite _diffrn_measurement_device_type 'Saturn724+ CCD' _diffrn_measurement_method '\w scans at fixed \c = 45\%' _diffrn_detector_area_resol_mean ? _diffrn_standards_number ? _diffrn_standards_interval_count ? _diffrn_standards_interval_time ? _diffrn_standards_decay_% ? _diffrn_reflns_number 14953 _diffrn_reflns_av_R_equivalents 0.0453 _diffrn_reflns_av_sigmaI/netI 0.0320 _diffrn_reflns_limit_h_min -9 _diffrn_reflns_limit_h_max 7 _diffrn_reflns_limit_k_min -16 _diffrn_reflns_limit_k_max 15 _diffrn_reflns_limit_l_min -22 _diffrn_reflns_limit_l_max 22 _diffrn_reflns_theta_min 2.69 _diffrn_reflns_theta_max 25.00 _reflns_number_total 3616 _reflns_number_gt 3377 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'CrystalClear (Rigaku Inc., 2007)' _computing_cell_refinement 'CrystalClear (Rigaku Inc., 2007)' _computing_data_reduction 'CrystalClear (Rigaku Inc., 2007)' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1990)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_molecular_graphics 'XP in Siemens SHELXTL (Sheldrick, 1994)' _computing_publication_material 'SHELX97 (Sheldrick, 1997)' _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^)+(0.0287P)^2^+0.7799P] 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 3616 _refine_ls_number_parameters 280 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.0640 _refine_ls_R_factor_gt 0.0580 _refine_ls_wR_factor_ref 0.1163 _refine_ls_wR_factor_gt 0.1135 _refine_ls_goodness_of_fit_ref 1.240 _refine_ls_restrained_S_all 1.240 _refine_ls_shift/su_max 0.000 _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 O1 O 0.15224(16) 0.28823(10) 0.26941(7) 0.0360(3) Uani 1 1 d . . . O2 O -0.2637(2) 0.65965(14) 0.41208(12) 0.0716(6) Uani 1 1 d . . . O3 O -0.4042(2) 0.52764(14) 0.41697(11) 0.0657(5) Uani 1 1 d . . . O4 O 0.23310(19) 0.58323(11) 0.16268(9) 0.0497(4) Uani 1 1 d . . . N1 N -0.2767(2) 0.57025(16) 0.41230(11) 0.0493(5) Uani 1 1 d . . . C1 C 0.3024(2) 0.33355(15) 0.31256(11) 0.0359(5) Uani 1 1 d . . . C2 C 0.4550(3) 0.28643(17) 0.29258(13) 0.0441(6) Uani 1 1 d . . . H2A H 0.4308 0.2254 0.2634 0.053 Uiso 1 1 calc R . . H2B H 0.5476 0.2766 0.3354 0.053 Uiso 1 1 calc R . . C3 C 0.4745(3) 0.37794(18) 0.24583(14) 0.0494(6) Uani 1 1 d . . . H3A H 0.4548 0.3645 0.1923 0.059 Uiso 1 1 calc R . . H3B H 0.5801 0.4129 0.2630 0.059 Uiso 1 1 calc R . . C4 C 0.3259(2) 0.42790(15) 0.26999(11) 0.0359(5) Uani 1 1 d . . . H4A H 0.3554 0.4873 0.3017 0.043 Uiso 1 1 calc R . . C5 C 0.1678(2) 0.43636(14) 0.21412(11) 0.0323(5) Uani 1 1 d . . . C6 C 0.0824(2) 0.35152(15) 0.21543(11) 0.0321(5) Uani 1 1 d . . . C7 C 0.2869(3) 0.33829(16) 0.39208(11) 0.0383(5) Uani 1 1 d . . . H7A H 0.2760 0.2710 0.4104 0.046 Uiso 1 1 calc R . . H7B H 0.3880 0.3676 0.4223 0.046 Uiso 1 1 calc R . . C8 C 0.1396(3) 0.39845(15) 0.40040(11) 0.0346(5) Uani 1 1 d . . . C9 C 0.1507(3) 0.49975(16) 0.40610(11) 0.0372(5) Uani 1 1 d . . . H9A H 0.2539 0.5306 0.4081 0.045 Uiso 1 1 calc R . . C10 C 0.0152(3) 0.55679(16) 0.40898(12) 0.0398(5) Uani 1 1 d . . . H10A H 0.0237 0.6262 0.4119 0.048 Uiso 1 1 calc R . . C11 C -0.1325(2) 0.51061(16) 0.40748(11) 0.0373(5) Uani 1 1 d . . . C12 C -0.1476(3) 0.40967(17) 0.40348(12) 0.0430(5) Uani 1 1 d . . . H12A H -0.2501 0.3791 0.4036 0.052 Uiso 1 1 calc R . . C13 C -0.0119(3) 0.35421(16) 0.39932(12) 0.0407(5) Uani 1 1 d . . . H13A H -0.0215 0.2849 0.3957 0.049 Uiso 1 1 calc R . . C14 C 0.1250(3) 0.52437(15) 0.16983(11) 0.0348(5) Uani 1 1 d . . . C15 C -0.0511(3) 0.54583(14) 0.13479(11) 0.0340(5) Uani 1 1 d . . . C16 C -0.0876(3) 0.57714(15) 0.06228(12) 0.0423(5) Uani 1 1 d . . . H16A H -0.0009 0.5881 0.0374 0.051 Uiso 1 1 calc R . . C17 C -0.2477(3) 0.59247(17) 0.02597(14) 0.0550(7) Uani 1 1 d . . . H17A H -0.2716 0.6120 -0.0242 0.066 Uiso 1 1 calc R . . C18 C -0.3736(3) 0.57951(17) 0.06242(16) 0.0587(7) Uani 1 1 d . . . H18A H -0.4844 0.5892 0.0371 0.070 Uiso 1 1 calc R . . C19 C -0.3388(3) 0.55240(16) 0.13572(16) 0.0515(6) Uani 1 1 d . . . H19A H -0.4255 0.5461 0.1613 0.062 Uiso 1 1 calc R . . C20 C -0.1778(3) 0.53432(15) 0.17197(13) 0.0414(5) Uani 1 1 d . . . H20A H -0.1542 0.5141 0.2220 0.050 Uiso 1 1 calc R . . C21 C -0.0671(2) 0.31220(14) 0.16689(11) 0.0325(5) Uani 1 1 d . . . C22 C -0.0937(3) 0.32721(15) 0.09132(11) 0.0353(5) Uani 1 1 d . . . H22A H -0.0146 0.3620 0.0714 0.042 Uiso 1 1 calc R . . C23 C -0.2348(3) 0.29189(15) 0.04480(12) 0.0414(5) Uani 1 1 d . . . H23A H -0.2526 0.3029 -0.0067 0.050 Uiso 1 1 calc R . . C24 C -0.3493(3) 0.24063(16) 0.07369(13) 0.0440(6) Uani 1 1 d . . . H24A H -0.4474 0.2176 0.0421 0.053 Uiso 1 1 calc R . . C25 C -0.3216(3) 0.22280(16) 0.14835(13) 0.0436(6) Uani 1 1 d . . . H25A H -0.3997 0.1863 0.1678 0.052 Uiso 1 1 calc R . . C26 C -0.1806(3) 0.25775(15) 0.19529(12) 0.0383(5) Uani 1 1 d . . . H26A H -0.1616 0.2446 0.2466 0.046 Uiso 1 1 calc R . . 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 O1 0.0344(8) 0.0364(8) 0.0360(8) 0.0054(6) 0.0053(6) -0.0015(6) O2 0.0569(12) 0.0531(12) 0.1063(17) 0.0023(11) 0.0209(11) 0.0165(10) O3 0.0321(9) 0.0803(13) 0.0834(14) -0.0084(10) 0.0099(9) 0.0003(9) O4 0.0432(9) 0.0466(9) 0.0594(11) 0.0129(8) 0.0113(8) -0.0082(8) N1 0.0358(11) 0.0591(14) 0.0505(12) -0.0019(10) 0.0036(9) 0.0074(10) C1 0.0308(11) 0.0379(12) 0.0379(12) 0.0018(9) 0.0048(9) -0.0006(9) C2 0.0368(12) 0.0474(14) 0.0489(14) 0.0018(11) 0.0106(10) 0.0025(10) C3 0.0353(12) 0.0624(16) 0.0515(15) 0.0089(12) 0.0115(11) -0.0004(11) C4 0.0340(11) 0.0388(12) 0.0343(11) 0.0018(9) 0.0058(9) -0.0034(9) C5 0.0321(11) 0.0352(11) 0.0307(11) 0.0001(8) 0.0089(9) -0.0007(9) C6 0.0324(11) 0.0350(11) 0.0306(11) 0.0008(8) 0.0101(9) 0.0031(9) C7 0.0363(12) 0.0405(12) 0.0363(12) 0.0053(9) 0.0040(9) 0.0038(10) C8 0.0371(11) 0.0392(12) 0.0265(10) 0.0053(8) 0.0045(9) 0.0020(9) C9 0.0330(11) 0.0402(12) 0.0377(12) 0.0017(9) 0.0066(9) -0.0032(10) C10 0.0407(12) 0.0354(12) 0.0422(13) 0.0029(9) 0.0068(10) 0.0013(10) C11 0.0306(11) 0.0458(13) 0.0340(11) 0.0012(9) 0.0033(9) 0.0053(10) C12 0.0334(12) 0.0511(14) 0.0439(13) -0.0003(10) 0.0072(10) -0.0060(10) C13 0.0459(13) 0.0380(12) 0.0383(12) 0.0012(9) 0.0095(10) -0.0030(10) C14 0.0382(12) 0.0354(11) 0.0324(11) 0.0006(9) 0.0108(9) -0.0042(9) C15 0.0393(12) 0.0263(10) 0.0361(11) 0.0001(8) 0.0077(9) -0.0006(9) C16 0.0516(14) 0.0342(12) 0.0407(13) 0.0018(10) 0.0087(11) 0.0051(11) C17 0.0662(17) 0.0431(14) 0.0480(15) 0.0027(11) -0.0048(13) 0.0084(12) C18 0.0460(15) 0.0352(13) 0.082(2) -0.0011(13) -0.0134(14) 0.0039(11) C19 0.0377(13) 0.0346(13) 0.0834(19) 0.0009(12) 0.0162(13) 0.0006(10) C20 0.0411(12) 0.0346(12) 0.0494(13) 0.0013(10) 0.0118(10) -0.0001(10) C21 0.0337(11) 0.0284(10) 0.0363(11) -0.0013(8) 0.0092(9) 0.0011(9) C22 0.0379(11) 0.0327(11) 0.0354(11) 0.0002(9) 0.0084(9) -0.0004(9) C23 0.0456(13) 0.0374(12) 0.0370(12) -0.0042(9) -0.0003(10) 0.0040(10) C24 0.0333(12) 0.0415(13) 0.0538(14) -0.0109(11) 0.0017(10) -0.0007(10) C25 0.0391(12) 0.0398(13) 0.0554(15) -0.0093(10) 0.0180(11) -0.0056(10) C26 0.0396(12) 0.0371(12) 0.0394(12) -0.0036(9) 0.0110(10) -0.0017(10) _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 O1 C6 1.356(2) . ? O1 C1 1.468(2) . ? O2 N1 1.224(3) . ? O3 N1 1.229(2) . ? O4 C14 1.234(2) . ? N1 C11 1.468(3) . ? C1 C7 1.514(3) . ? C1 C2 1.539(3) . ? C1 C4 1.545(3) . ? C2 C3 1.549(3) . ? C2 H2A 0.9900 . ? C2 H2B 0.9900 . ? C3 C4 1.561(3) . ? C3 H3A 0.9900 . ? C3 H3B 0.9900 . ? C4 C5 1.495(3) . ? C4 H4A 1.0000 . ? C5 C6 1.361(3) . ? C5 C14 1.455(3) . ? C6 C21 1.471(3) . ? C7 C8 1.510(3) . ? C7 H7A 0.9900 . ? C7 H7B 0.9900 . ? C8 C9 1.387(3) . ? C8 C13 1.394(3) . ? C9 C10 1.380(3) . ? C9 H9A 0.9500 . ? C10 C11 1.376(3) . ? C10 H10A 0.9500 . ? C11 C12 1.382(3) . ? C12 C13 1.375(3) . ? C12 H12A 0.9500 . ? C13 H13A 0.9500 . ? C14 C15 1.499(3) . ? C15 C16 1.385(3) . ? C15 C20 1.389(3) . ? C16 C17 1.374(3) . ? C16 H16A 0.9500 . ? C17 C18 1.377(4) . ? C17 H17A 0.9500 . ? C18 C19 1.382(4) . ? C18 H18A 0.9500 . ? C19 C20 1.386(3) . ? C19 H19A 0.9500 . ? C20 H20A 0.9500 . ? C21 C22 1.390(3) . ? C21 C26 1.393(3) . ? C22 C23 1.385(3) . ? C22 H22A 0.9500 . ? C23 C24 1.381(3) . ? C23 H23A 0.9500 . ? C24 C25 1.380(3) . ? C24 H24A 0.9500 . ? C25 C26 1.387(3) . ? C25 H25A 0.9500 . ? C26 H26A 0.9500 . ? 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 O1 C1 108.38(15) . . ? O2 N1 O3 123.3(2) . . ? O2 N1 C11 118.5(2) . . ? O3 N1 C11 118.2(2) . . ? O1 C1 C7 108.07(16) . . ? O1 C1 C2 109.99(17) . . ? C7 C1 C2 120.19(18) . . ? O1 C1 C4 104.92(15) . . ? C7 C1 C4 120.82(18) . . ? C2 C1 C4 91.21(16) . . ? C1 C2 C3 89.51(17) . . ? C1 C2 H2A 113.7 . . ? C3 C2 H2A 113.7 . . ? C1 C2 H2B 113.7 . . ? C3 C2 H2B 113.7 . . ? H2A C2 H2B 111.0 . . ? C2 C3 C4 90.23(16) . . ? C2 C3 H3A 113.6 . . ? C4 C3 H3A 113.6 . . ? C2 C3 H3B 113.6 . . ? C4 C3 H3B 113.6 . . ? H3A C3 H3B 110.9 . . ? C5 C4 C1 103.33(16) . . ? C5 C4 C3 117.83(18) . . ? C1 C4 C3 88.87(16) . . ? C5 C4 H4A 114.5 . . ? C1 C4 H4A 114.5 . . ? C3 C4 H4A 114.5 . . ? C6 C5 C14 130.26(19) . . ? C6 C5 C4 107.87(18) . . ? C14 C5 C4 121.87(18) . . ? O1 C6 C5 114.34(18) . . ? O1 C6 C21 113.15(17) . . ? C5 C6 C21 132.41(19) . . ? C8 C7 C1 111.46(16) . . ? C8 C7 H7A 109.3 . . ? C1 C7 H7A 109.3 . . ? C8 C7 H7B 109.3 . . ? C1 C7 H7B 109.3 . . ? H7A C7 H7B 108.0 . . ? C9 C8 C13 118.47(19) . . ? C9 C8 C7 120.46(19) . . ? C13 C8 C7 121.01(19) . . ? C10 C9 C8 121.5(2) . . ? C10 C9 H9A 119.2 . . ? C8 C9 H9A 119.2 . . ? C11 C10 C9 118.4(2) . . ? C11 C10 H10A 120.8 . . ? C9 C10 H10A 120.8 . . ? C10 C11 C12 121.8(2) . . ? C10 C11 N1 118.9(2) . . ? C12 C11 N1 119.26(19) . . ? C13 C12 C11 119.0(2) . . ? C13 C12 H12A 120.5 . . ? C11 C12 H12A 120.5 . . ? C12 C13 C8 120.8(2) . . ? C12 C13 H13A 119.6 . . ? C8 C13 H13A 119.6 . . ? O4 C14 C5 120.16(19) . . ? O4 C14 C15 119.56(18) . . ? C5 C14 C15 120.24(18) . . ? C16 C15 C20 119.3(2) . . ? C16 C15 C14 118.15(19) . . ? C20 C15 C14 122.52(19) . . ? C17 C16 C15 120.7(2) . . ? C17 C16 H16A 119.6 . . ? C15 C16 H16A 119.6 . . ? C16 C17 C18 119.9(2) . . ? C16 C17 H17A 120.0 . . ? C18 C17 H17A 120.0 . . ? C17 C18 C19 120.1(2) . . ? C17 C18 H18A 120.0 . . ? C19 C18 H18A 120.0 . . ? C18 C19 C20 120.1(2) . . ? C18 C19 H19A 119.9 . . ? C20 C19 H19A 119.9 . . ? C19 C20 C15 119.7(2) . . ? C19 C20 H20A 120.1 . . ? C15 C20 H20A 120.1 . . ? C22 C21 C26 119.27(19) . . ? C22 C21 C6 119.76(18) . . ? C26 C21 C6 120.95(18) . . ? C23 C22 C21 120.6(2) . . ? C23 C22 H22A 119.7 . . ? C21 C22 H22A 119.7 . . ? C24 C23 C22 119.7(2) . . ? C24 C23 H23A 120.1 . . ? C22 C23 H23A 120.1 . . ? C25 C24 C23 120.1(2) . . ? C25 C24 H24A 119.9 . . ? C23 C24 H24A 119.9 . . ? C24 C25 C26 120.5(2) . . ? C24 C25 H25A 119.7 . . ? C26 C25 H25A 119.7 . . ? C25 C26 C21 119.7(2) . . ? C25 C26 H26A 120.1 . . ? C21 C26 H26A 120.1 . . ? loop_ _geom_torsion_atom_site_label_1 _geom_torsion_atom_site_label_2 _geom_torsion_atom_site_label_3 _geom_torsion_atom_site_label_4 _geom_torsion _geom_torsion_site_symmetry_1 _geom_torsion_site_symmetry_2 _geom_torsion_site_symmetry_3 _geom_torsion_site_symmetry_4 _geom_torsion_publ_flag C6 O1 C1 C7 122.54(17) . . . . ? C6 O1 C1 C2 -104.50(18) . . . . ? C6 O1 C1 C4 -7.6(2) . . . . ? O1 C1 C2 C3 103.23(18) . . . . ? C7 C1 C2 C3 -130.4(2) . . . . ? C4 C1 C2 C3 -3.13(17) . . . . ? C1 C2 C3 C4 3.10(17) . . . . ? O1 C1 C4 C5 10.4(2) . . . . ? C7 C1 C4 C5 -111.8(2) . . . . ? C2 C1 C4 C5 121.48(17) . . . . ? O1 C1 C4 C3 -107.96(17) . . . . ? C7 C1 C4 C3 129.9(2) . . . . ? C2 C1 C4 C3 3.11(17) . . . . ? C2 C3 C4 C5 -107.6(2) . . . . ? C2 C3 C4 C1 -3.09(17) . . . . ? C1 C4 C5 C6 -9.9(2) . . . . ? C3 C4 C5 C6 85.9(2) . . . . ? C1 C4 C5 C14 169.37(17) . . . . ? C3 C4 C5 C14 -94.8(2) . . . . ? C1 O1 C6 C5 1.4(2) . . . . ? C1 O1 C6 C21 178.07(16) . . . . ? C14 C5 C6 O1 -173.39(19) . . . . ? C4 C5 C6 O1 5.8(2) . . . . ? C14 C5 C6 C21 10.7(4) . . . . ? C4 C5 C6 C21 -170.1(2) . . . . ? O1 C1 C7 C8 -60.0(2) . . . . ? C2 C1 C7 C8 172.73(18) . . . . ? C4 C1 C7 C8 60.7(2) . . . . ? C1 C7 C8 C9 -83.8(2) . . . . ? C1 C7 C8 C13 93.4(2) . . . . ? C13 C8 C9 C10 -1.5(3) . . . . ? C7 C8 C9 C10 175.77(19) . . . . ? C8 C9 C10 C11 1.2(3) . . . . ? C9 C10 C11 C12 0.2(3) . . . . ? C9 C10 C11 N1 178.55(19) . . . . ? O2 N1 C11 C10 5.2(3) . . . . ? O3 N1 C11 C10 -174.1(2) . . . . ? O2 N1 C11 C12 -176.4(2) . . . . ? O3 N1 C11 C12 4.2(3) . . . . ? C10 C11 C12 C13 -1.4(3) . . . . ? N1 C11 C12 C13 -179.70(19) . . . . ? C11 C12 C13 C8 1.1(3) . . . . ? C9 C8 C13 C12 0.3(3) . . . . ? C7 C8 C13 C12 -176.95(19) . . . . ? C6 C5 C14 O4 -161.6(2) . . . . ? C4 C5 C14 O4 19.3(3) . . . . ? C6 C5 C14 C15 20.5(3) . . . . ? C4 C5 C14 C15 -158.57(19) . . . . ? O4 C14 C15 C16 46.6(3) . . . . ? C5 C14 C15 C16 -135.5(2) . . . . ? O4 C14 C15 C20 -134.2(2) . . . . ? C5 C14 C15 C20 43.7(3) . . . . ? C20 C15 C16 C17 -3.0(3) . . . . ? C14 C15 C16 C17 176.2(2) . . . . ? C15 C16 C17 C18 1.9(3) . . . . ? C16 C17 C18 C19 0.9(4) . . . . ? C17 C18 C19 C20 -2.6(4) . . . . ? C18 C19 C20 C15 1.5(3) . . . . ? C16 C15 C20 C19 1.2(3) . . . . ? C14 C15 C20 C19 -177.93(19) . . . . ? O1 C6 C21 C22 -138.38(19) . . . . ? C5 C6 C21 C22 37.6(3) . . . . ? O1 C6 C21 C26 39.9(3) . . . . ? C5 C6 C21 C26 -144.1(2) . . . . ? C26 C21 C22 C23 2.5(3) . . . . ? C6 C21 C22 C23 -179.12(18) . . . . ? C21 C22 C23 C24 -0.5(3) . . . . ? C22 C23 C24 C25 -1.5(3) . . . . ? C23 C24 C25 C26 1.4(3) . . . . ? C24 C25 C26 C21 0.7(3) . . . . ? C22 C21 C26 C25 -2.6(3) . . . . ? C6 C21 C26 C25 179.06(18) . . . . ? _diffrn_measured_fraction_theta_max 0.998 _diffrn_reflns_theta_full 25.00 _diffrn_measured_fraction_theta_full 0.998 _refine_diff_density_max 0.146 _refine_diff_density_min -0.139 _refine_diff_density_rms 0.036