#------------------------------------------------------------------------------ #$Date: 2011-09-10 04:16:28 +0100 (Sat, 10 Sep 2011) $ #$Revision: 25271 $ #$URL: svn://www.crystallography.net/cod/cif/2/2007333.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_2007333 loop_ _publ_author_name 'Clegg, W.' 'Coles, S. J.' 'Fallis, I. A.' 'Griffiths, P. M.' 'Teat, S. J.' _publ_section_title ; 4-Cyano-4'-[(4R)-4,5-epoxypentyloxy]biphenyl: a Pseudosymmetry Problem Solved with Synchrotron Data ; _journal_issue 6 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 882 _journal_page_last 885 _journal_volume 54 _journal_year 1998 _chemical_formula_moiety 'C18 H17 N O2' _chemical_formula_sum 'C18 H17 N O2' _chemical_formula_weight 279.33 _chemical_name_systematic ; 4-cyano-4'-(4R-5-epoxypentyloxy)biphenyl ; _space_group_IT_number 4 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall 'P 2yb' _symmetry_space_group_name_H-M 'P 1 21 1' _audit_creation_method SHELXL97 _cell_angle_alpha 90.00 _cell_angle_beta 106.387(4) _cell_angle_gamma 90.00 _cell_formula_units_Z 4 _cell_length_a 12.698(3) _cell_length_b 5.6022(11) _cell_length_c 21.041(4) _cell_measurement_reflns_used 6753 _cell_measurement_temperature 160(2) _cell_measurement_theta_max 26.30 _cell_measurement_theta_min 1.69 _cell_volume 1436.0(5) _computing_cell_refinement 'local programs' _computing_data_collection 'SMART (Siemens, 1995)' _computing_data_reduction 'SAINT (Siemens, 1995)' _computing_molecular_graphics SHELXTL _computing_publication_material 'SHELXTL and local programs' _computing_structure_refinement SHELXTL _computing_structure_solution 'SHELXTL (Sheldrick, 1994)' _diffrn_ambient_temperature 160(2) _diffrn_detector_area_resol_mean 8.192 _diffrn_measured_fraction_theta_full 0.983 _diffrn_measured_fraction_theta_max 0.910 _diffrn_measurement_device_type ; Siemens SMART CCD diffractometer with Oxford Cryosystems Cryostream cooler (Cosier & Glazer, 1986) ; _diffrn_measurement_method '\w rotation scans with narrow frames' _diffrn_radiation_monochromator 'silicon 111' _diffrn_radiation_source 'Daresbury SRS station 9.8' _diffrn_radiation_type Synchrotron _diffrn_radiation_wavelength 0.6956 _diffrn_reflns_av_R_equivalents 0.026 _diffrn_reflns_av_sigmaI/netI 0.036 _diffrn_reflns_limit_h_max 15 _diffrn_reflns_limit_h_min -14 _diffrn_reflns_limit_k_max 6 _diffrn_reflns_limit_k_min -6 _diffrn_reflns_limit_l_max 25 _diffrn_reflns_limit_l_min -26 _diffrn_reflns_number 9761 _diffrn_reflns_theta_full 24.50 _diffrn_reflns_theta_max 25.76 _diffrn_reflns_theta_min 0.99 _diffrn_standards_decay_% 14 _diffrn_standards_number 0 _exptl_absorpt_coefficient_mu 0.084 _exptl_absorpt_correction_type none _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.292 _exptl_crystal_density_method 'not measured' _exptl_crystal_description plate _exptl_crystal_F_000 592 _exptl_crystal_size_max 0.25 _exptl_crystal_size_mid 0.16 _exptl_crystal_size_min 0.03 _refine_diff_density_max 0.34 _refine_diff_density_min -0.27 _refine_ls_abs_structure_details 'Flack (1983)' _refine_ls_abs_structure_Flack -0.4(15) _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.034 _refine_ls_hydrogen_treatment 'H atoms riding' _refine_ls_matrix_type full _refine_ls_number_parameters 379 _refine_ls_number_reflns 4831 _refine_ls_number_restraints 1 _refine_ls_restrained_S_all 1.034 _refine_ls_R_factor_all 0.058 _refine_ls_R_factor_gt 0.046 _refine_ls_shift/su_max 0.003 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w = 1/[\s^2^(Fo^2^)+(0.0821P)^2^+0.157P] where P = (Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_ref 0.133 _reflns_number_gt 3939 _reflns_number_total 4831 _reflns_threshold_expression I>2\s(I) _[local]_cod_data_source_file fg1424.cif _[local]_cod_data_source_block 3 _[local]_cod_cif_authors_sg_H-M 'P 21' _[local]_cod_cif_authors_sg_Hall 'P 2y1' _cod_database_code 2007333 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, y+1/2, -z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_type_symbol N1 -0.16654(17) 0.3465(5) 0.28862(10) 0.0428(6) Uani d . 1 N C1 -0.1694(2) 0.3312(5) 0.23389(12) 0.0342(6) Uani d . 1 C C2 -0.16913(18) 0.3209(5) 0.16556(11) 0.0284(6) Uani d . 1 C C3 -0.1180(3) 0.1326(6) 0.14337(12) 0.0495(8) Uani d . 1 C H3 -0.0852 0.0079 0.1729 0.059 Uiso calc R 1 H C4 -0.1149(2) 0.1262(6) 0.07888(12) 0.0470(8) Uani d . 1 C H4 -0.0795 -0.0039 0.0644 0.056 Uiso calc R 1 H C5 -0.16210(17) 0.3055(4) 0.03399(10) 0.0236(6) Uani d . 1 C C6 -0.2123(2) 0.4923(6) 0.05755(11) 0.0376(7) Uani d . 1 C H6 -0.2450 0.6180 0.0283 0.045 Uiso calc R 1 H C7 -0.2156(2) 0.4996(6) 0.12232(11) 0.0377(7) Uani d . 1 C H7 -0.2505 0.6296 0.1372 0.045 Uiso calc R 1 H C8 -0.15631(17) 0.3014(5) -0.03533(10) 0.0242(5) Uani d . 1 C C9 -0.10325(18) 0.1194(5) -0.05869(10) 0.0274(6) Uani d . 1 C H9 -0.0700 -0.0051 -0.0292 0.033 Uiso calc R 1 H C10 -0.09667(18) 0.1114(5) -0.12285(11) 0.0304(6) Uani d . 1 C H10 -0.0607 -0.0179 -0.1372 0.036 Uiso calc R 1 H C11 -0.14312(18) 0.2940(5) -0.16627(10) 0.0250(6) Uani d . 1 C O1 -0.14121(12) 0.3041(3) -0.23059(7) 0.0306(5) Uani d . 1 O C12 -0.19630(19) 0.4783(5) -0.14461(10) 0.0304(6) Uani d . 1 C H12 -0.2289 0.6032 -0.1742 0.037 Uiso calc R 1 H C13 -0.20225(19) 0.4817(5) -0.08040(11) 0.0314(6) Uani d . 1 C H13 -0.2388 0.6106 -0.0663 0.038 Uiso calc R 1 H C14 -0.09158(19) 0.1070(5) -0.25450(10) 0.0312(6) Uani d . 1 C H14A -0.1332 -0.0410 -0.2527 0.037 Uiso calc R 1 H H14B -0.0154 0.0847 -0.2263 0.037 Uiso calc R 1 H C15 -0.0913(2) 0.1557(5) -0.32462(10) 0.0331(6) Uani d . 1 C H15A -0.1670 0.1935 -0.3514 0.040 Uiso calc R 1 H H15B -0.0675 0.0100 -0.3434 0.040 Uiso calc R 1 H C16 -0.0162(2) 0.3605(7) -0.32963(11) 0.0425(7) Uani d . 1 C H16A -0.0459 0.5088 -0.3157 0.051 Uiso calc R 1 H H16B 0.0566 0.3314 -0.2978 0.051 Uiso calc R 1 H C17 -0.0007(2) 0.4005(9) -0.39622(13) 0.0610(10) Uani d . 1 C H17 0.0552 0.5252 -0.3972 0.073 Uiso calc R 1 H C18 -0.0137(3) 0.2274(9) -0.44527(16) 0.0889(13) Uani d . 1 C H18A -0.0320 0.0632 -0.4346 0.107 Uiso calc R 1 H H18B 0.0341 0.2372 -0.4751 0.107 Uiso calc R 1 H O2 -0.09474(18) 0.4069(5) -0.45104(9) 0.0688(7) Uani d . 1 O N2 0.32334(17) 0.3588(5) 0.78117(9) 0.0402(6) Uani d . 1 N C19 0.32279(18) 0.3727(6) 0.72723(11) 0.0320(6) Uani d . 1 C C20 0.32481(18) 0.3890(5) 0.65899(11) 0.0295(6) Uani d . 1 C C21 0.3779(3) 0.5726(6) 0.63809(13) 0.0546(9) Uani d . 1 C H21 0.4109 0.6961 0.6680 0.066 Uiso calc R 1 H C22 0.3833(3) 0.5783(6) 0.57363(12) 0.0499(8) Uani d . 1 C H22 0.4198 0.7077 0.5597 0.060 Uiso calc R 1 H C23 0.33724(17) 0.4006(5) 0.52861(10) 0.0258(6) Uani d . 1 C C24 0.2854(2) 0.2166(6) 0.55170(11) 0.0445(8) Uani d . 1 C H24 0.2532 0.0912 0.5222 0.053 Uiso calc R 1 H C25 0.2788(2) 0.2086(6) 0.61559(11) 0.0439(8) Uani d . 1 C H25 0.2426 0.0793 0.6298 0.053 Uiso calc R 1 H C26 0.34611(17) 0.4027(5) 0.45969(10) 0.0246(6) Uani d . 1 C C27 0.39925(18) 0.5865(5) 0.43688(10) 0.0298(6) Uani d . 1 C H27 0.4301 0.7138 0.4660 0.036 Uiso calc R 1 H C28 0.40851(18) 0.5895(5) 0.37292(10) 0.0282(6) Uani d . 1 C H28 0.4458 0.7170 0.3588 0.034 Uiso calc R 1 H C29 0.36354(17) 0.4070(5) 0.32967(10) 0.0262(6) Uani d . 1 C O3 0.36708(12) 0.3936(4) 0.26564(7) 0.0305(4) Uani d . 1 O C30 0.3105(2) 0.2200(5) 0.35134(11) 0.0309(6) Uani d . 1 C H30 0.2802 0.0928 0.3220 0.037 Uiso calc R 1 H C31 0.30167(19) 0.2184(5) 0.41507(10) 0.0299(6) Uani d . 1 C H31 0.2647 0.0900 0.4291 0.036 Uiso calc R 1 H C32 0.41505(19) 0.5944(5) 0.24138(10) 0.0304(6) Uani d . 1 C H32A 0.4911 0.6201 0.2694 0.036 Uiso calc R 1 H H32B 0.3720 0.7406 0.2429 0.036 Uiso calc R 1 H C33 0.41492(19) 0.5428(5) 0.17121(10) 0.0325(7) Uani d . 1 C H33A 0.3397 0.4965 0.1455 0.039 Uiso calc R 1 H H33B 0.4340 0.6910 0.1514 0.039 Uiso calc R 1 H C34 0.49278(19) 0.3495(6) 0.16461(10) 0.0362(6) Uani d . 1 C H34A 0.5645 0.3745 0.1980 0.043 Uiso calc R 1 H H34B 0.4637 0.1930 0.1736 0.043 Uiso calc R 1 H C35 0.5090(2) 0.3466(6) 0.09690(11) 0.0406(7) Uani d . 1 C H35 0.5399 0.4971 0.0839 0.049 Uiso calc R 1 H C36 0.5350(3) 0.1342(7) 0.06664(13) 0.0595(8) Uani d . 1 C H36A 0.5825 0.1498 0.0368 0.071 Uiso calc R 1 H H36B 0.5447 -0.0157 0.0926 0.071 Uiso calc R 1 H O4 0.42747(16) 0.2358(5) 0.04558(8) 0.0657(7) Uani d . 1 O loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 N1 0.0558(14) 0.0419(16) 0.0357(11) -0.0044(14) 0.0212(10) -0.0030(11) C1 0.0391(14) 0.0310(17) 0.0358(13) -0.0067(14) 0.0158(10) -0.0039(12) C2 0.0295(13) 0.0321(16) 0.0262(11) -0.0107(12) 0.0123(10) -0.0048(11) C3 0.093(2) 0.0276(17) 0.0349(13) 0.0107(19) 0.0288(15) 0.0097(13) C4 0.086(2) 0.0274(17) 0.0353(13) 0.0132(17) 0.0303(14) 0.0057(12) C5 0.0214(11) 0.0217(15) 0.0279(11) -0.0059(12) 0.0070(9) -0.0029(10) C6 0.0366(14) 0.0449(18) 0.0285(12) 0.0171(15) 0.0048(10) 0.0017(13) C7 0.0321(14) 0.0493(19) 0.0302(12) 0.0101(14) 0.0062(10) -0.0098(13) C8 0.0211(11) 0.0243(15) 0.0265(11) -0.0042(12) 0.0058(9) -0.0017(11) C9 0.0273(13) 0.0266(14) 0.0264(11) 0.0059(13) 0.0043(10) 0.0039(11) C10 0.0284(13) 0.0309(16) 0.0301(12) 0.0096(14) 0.0057(10) -0.0001(12) C11 0.0201(11) 0.0282(15) 0.0246(10) -0.0010(12) 0.0029(9) -0.0007(10) O1 0.0341(9) 0.0351(12) 0.0234(7) 0.0108(9) 0.0091(7) 0.0040(8) C12 0.0382(14) 0.0253(15) 0.0300(12) 0.0073(13) 0.0130(11) 0.0071(11) C13 0.0400(15) 0.0231(15) 0.0333(12) 0.0036(13) 0.0141(11) -0.0011(12) C14 0.0278(13) 0.0360(16) 0.0300(12) 0.0068(13) 0.0084(10) -0.0007(12) C15 0.0307(13) 0.0421(18) 0.0269(11) 0.0032(14) 0.0086(10) 0.0010(12) C16 0.0391(14) 0.055(2) 0.0352(12) 0.0009(17) 0.0127(11) 0.0043(14) C17 0.0437(16) 0.101(3) 0.0399(14) 0.0081(19) 0.0141(12) 0.0198(18) C18 0.123(3) 0.104(3) 0.059(2) 0.049(3) 0.055(2) 0.016(2) O2 0.0716(14) 0.0980(19) 0.0377(10) 0.0421(15) 0.0169(10) 0.0196(12) N2 0.0546(13) 0.0407(15) 0.0315(10) 0.0037(14) 0.0223(9) 0.0028(11) C19 0.0332(13) 0.0317(16) 0.0340(12) 0.0064(14) 0.0141(10) 0.0006(12) C20 0.0283(12) 0.0336(15) 0.0286(11) 0.0085(13) 0.0113(9) 0.0052(12) C21 0.098(3) 0.0350(19) 0.0394(15) -0.014(2) 0.0338(16) -0.0070(14) C22 0.096(2) 0.0282(17) 0.0366(14) -0.0145(18) 0.0361(15) -0.0045(13) C23 0.0223(11) 0.0306(16) 0.0241(10) 0.0060(13) 0.0058(9) 0.0036(11) C24 0.0505(17) 0.056(2) 0.0260(12) -0.0255(18) 0.0087(12) -0.0025(14) C25 0.0468(16) 0.056(2) 0.0291(12) -0.0231(16) 0.0110(11) -0.0009(14) C26 0.0211(11) 0.0263(15) 0.0249(10) 0.0047(12) 0.0040(9) 0.0052(11) C27 0.0286(13) 0.0349(16) 0.0250(12) -0.0037(14) 0.0062(10) -0.0022(12) C28 0.0281(13) 0.0321(16) 0.0249(11) -0.0053(13) 0.0083(9) 0.0013(11) C29 0.0246(11) 0.0341(16) 0.0204(10) 0.0004(13) 0.0070(9) -0.0001(11) O3 0.0361(9) 0.0335(12) 0.0236(7) -0.0091(9) 0.0112(7) -0.0021(8) C30 0.0395(14) 0.0236(15) 0.0306(12) -0.0045(13) 0.0118(11) -0.0038(11) C31 0.0387(14) 0.0217(14) 0.0313(12) -0.0017(13) 0.0135(11) 0.0000(11) C32 0.0302(13) 0.0347(15) 0.0272(12) -0.0063(13) 0.0096(10) 0.0041(11) C33 0.0291(13) 0.0440(18) 0.0233(11) -0.0048(14) 0.0052(10) 0.0040(12) C34 0.0344(13) 0.0450(17) 0.0279(11) 0.0009(15) 0.0069(10) -0.0028(13) C35 0.0379(13) 0.0503(17) 0.0351(12) -0.0057(14) 0.0126(10) -0.0048(13) C36 0.076(2) 0.063(2) 0.0463(15) -0.0122(17) 0.0286(15) -0.0145(15) O4 0.0529(13) 0.109(2) 0.0336(9) -0.0389(14) 0.0094(9) -0.0163(12) 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' loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle N1 C1 C2 177.3(3) C7 C2 C3 119.2(2) C7 C2 C1 120.8(2) C3 C2 C1 120.0(2) C4 C3 C2 120.1(3) C3 C4 C5 121.7(3) C6 C5 C4 117.1(2) C6 C5 C8 121.2(2) C4 C5 C8 121.7(2) C7 C6 C5 121.4(3) C2 C7 C6 120.6(3) C9 C8 C13 116.3(2) C9 C8 C5 121.6(2) C13 C8 C5 122.1(2) C10 C9 C8 122.8(2) C9 C10 C11 119.3(2) O1 C11 C12 116.4(2) O1 C11 C10 124.2(2) C12 C11 C10 119.4(2) C11 O1 C14 116.78(19) C13 C12 C11 120.2(2) C12 C13 C8 122.0(2) O1 C14 C15 109.2(2) C14 C15 C16 112.4(2) C17 C16 C15 115.7(3) C18 C17 O2 60.9(2) C18 C17 C16 125.1(4) O2 C17 C16 118.0(2) C17 C18 O2 60.1(2) C17 O2 C18 59.0(2) N2 C19 C20 178.6(2) C21 C20 C25 119.6(2) C21 C20 C19 121.0(3) C25 C20 C19 119.3(3) C20 C21 C22 120.0(3) C21 C22 C23 121.8(3) C24 C23 C22 116.5(2) C24 C23 C26 121.6(2) C22 C23 C26 121.9(2) C25 C24 C23 122.4(3) C24 C25 C20 119.6(3) C27 C26 C31 117.2(2) C27 C26 C23 121.4(2) C31 C26 C23 121.4(2) C28 C27 C26 121.9(2) C29 C28 C27 120.0(2) O3 C29 C28 124.7(2) O3 C29 C30 115.9(2) C28 C29 C30 119.36(19) C29 O3 C32 116.3(2) C31 C30 C29 120.3(2) C30 C31 C26 121.3(2) O3 C32 C33 108.3(2) C34 C33 C32 114.3(2) C35 C34 C33 111.6(2) O4 C35 C36 60.4(2) O4 C35 C34 117.7(2) C36 C35 C34 122.9(3) O4 C36 C35 59.08(19) C35 O4 C36 60.53(18) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance N1 C1 1.145(3) C1 C2 1.440(3) C2 C7 1.370(4) C2 C3 1.387(4) C3 C4 1.369(3) C4 C5 1.393(4) C5 C6 1.388(3) C5 C8 1.481(3) C6 C7 1.376(3) C8 C9 1.387(3) C8 C13 1.395(3) C9 C10 1.377(3) C10 C11 1.388(4) C11 O1 1.361(2) C11 C12 1.379(3) O1 C14 1.431(3) C12 C13 1.374(3) C14 C15 1.501(3) C15 C16 1.515(4) C16 C17 1.486(3) C17 C18 1.391(5) C17 O2 1.408(3) C18 O2 1.420(4) N2 C19 1.136(3) C19 C20 1.446(3) C20 C21 1.368(4) C20 C25 1.377(4) C21 C22 1.378(3) C22 C23 1.385(4) C23 C24 1.383(4) C23 C26 1.486(3) C24 C25 1.371(3) C26 C27 1.389(3) C26 C31 1.402(3) C27 C28 1.384(3) C28 C29 1.381(4) C29 O3 1.363(2) C29 C30 1.390(4) O3 C32 1.440(3) C30 C31 1.377(3) C32 C33 1.504(3) C33 C34 1.499(4) C34 C35 1.496(3) C35 O4 1.411(3) C35 C36 1.432(4) C36 O4 1.430(4) 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_publ_flag N1 C1 C2 C7 -72(6) ? N1 C1 C2 C3 106(6) ? C7 C2 C3 C4 -0.3(4) ? C1 C2 C3 C4 -178.0(3) ? C2 C3 C4 C5 0.0(5) ? C3 C4 C5 C6 0.3(4) ? C3 C4 C5 C8 178.5(3) ? C4 C5 C6 C7 -0.3(4) ? C8 C5 C6 C7 -178.5(2) ? C3 C2 C7 C6 0.3(4) ? C1 C2 C7 C6 178.0(2) ? C5 C6 C7 C2 0.0(4) ? C6 C5 C8 C9 177.9(2) ? C4 C5 C8 C9 -0.2(3) ? C6 C5 C8 C13 -1.1(3) ? C4 C5 C8 C13 -179.2(3) ? C13 C8 C9 C10 -0.9(3) ? C5 C8 C9 C10 180.0(2) ? C8 C9 C10 C11 1.1(4) ? C9 C10 C11 O1 179.9(2) ? C9 C10 C11 C12 -0.9(4) ? C12 C11 O1 C14 -176.6(2) ? C10 C11 O1 C14 2.6(3) ? O1 C11 C12 C13 179.9(2) ? C10 C11 C12 C13 0.6(4) ? C11 C12 C13 C8 -0.4(4) ? C9 C8 C13 C12 0.6(4) ? C5 C8 C13 C12 179.7(2) ? C11 O1 C14 C15 -176.84(19) yes O1 C14 C15 C16 67.3(3) yes C14 C15 C16 C17 172.7(2) yes C15 C16 C17 C18 -24.6(4) yes C15 C16 C17 O2 48.0(5) yes C16 C17 C18 O2 105.4(3) yes C16 C17 O2 C18 -116.7(4) yes N2 C19 C20 C21 -70(15) ? N2 C19 C20 C25 106(14) ? C25 C20 C21 C22 1.1(5) ? C19 C20 C21 C22 176.8(3) ? C20 C21 C22 C23 -0.7(5) ? C21 C22 C23 C24 -0.1(5) ? C21 C22 C23 C26 -178.1(3) ? C22 C23 C24 C25 0.3(4) ? C26 C23 C24 C25 178.3(2) ? C23 C24 C25 C20 0.1(5) ? C21 C20 C25 C24 -0.8(4) ? C19 C20 C25 C24 -176.6(3) ? C24 C23 C26 C27 -179.3(2) ? C22 C23 C26 C27 -1.4(4) ? C24 C23 C26 C31 0.4(4) ? C22 C23 C26 C31 178.2(3) ? C31 C26 C27 C28 0.0(3) ? C23 C26 C27 C28 179.6(2) ? C26 C27 C28 C29 0.5(4) ? C27 C28 C29 O3 179.4(2) ? C27 C28 C29 C30 -0.9(4) ? C28 C29 O3 C32 -4.4(3) ? C30 C29 O3 C32 175.8(2) ? O3 C29 C30 C31 -179.4(2) ? C28 C29 C30 C31 0.8(4) ? C29 C30 C31 C26 -0.4(4) ? C27 C26 C31 C30 0.0(4) ? C23 C26 C31 C30 -179.6(2) ? C29 O3 C32 C33 178.12(18) yes O3 C32 C33 C34 -69.4(3) yes C32 C33 C34 C35 -166.3(2) yes C33 C34 C35 O4 -80.0(3) yes C33 C34 C35 C36 -151.1(3) yes C34 C35 C36 O4 105.7(3) yes C34 C35 O4 C36 -114.0(3) yes