#------------------------------------------------------------------------------ #$Date: 2011-09-10 04:16:28 +0100 (Sat, 10 Sep 2011) $ #$Revision: 25271 $ #$URL: svn://www.crystallography.net/cod/cif/2/2008579.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_2008579 loop_ _publ_author_name 'Al\'ias, M.' 'Bu\~nuel, E.' 'Cativiela, C.' 'D\'iaz-de-Villegas, M. D.' 'G\'alvez, J. A.' _publ_section_title ; (1R,2R,3S,4S,5S,6S)-exo-2-Cyano-exo-3-[(S)-1,2-dibenzyloxyethyl]-exo-5-iodobicyclo[2.2.1]heptane-endo-2,6-carbolactone ; _journal_issue 6 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 1009 _journal_page_last 1012 _journal_volume 55 _journal_year 1999 _chemical_formula_sum 'C25 H24 I N O4' _chemical_formula_weight 529.35 _chemical_name_systematic ; (1R,2R,3S,4S,5S,6S)-exo-3-[(S)-1,2-dibenzyloxyethyl]-exo-2-cyano-endo-6- hydroxy-exo-5-iodobicyclo[2.2.1]heptane-endo-2-carboxylic Acid Lactone. ; _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' _cell_angle_alpha 90.00 _cell_angle_beta 95.500(10) _cell_angle_gamma 90.00 _cell_formula_units_Z 2 _cell_length_a 6.4250(10) _cell_length_b 7.8950(10) _cell_length_c 21.883(2) _cell_measurement_reflns_used 49 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 16.92 _cell_measurement_theta_min 6.00 _cell_volume 1104.9(2) _computing_cell_refinement XSCANS _computing_data_collection 'XSCANS (Siemens, 1993)' _computing_data_reduction XSCANS _computing_molecular_graphics 'SHELXTL-Plus (Sheldrick, 1989)' _computing_publication_material 'SHELXL97 and PARST (Nardelli, 1983)' _computing_structure_refinement 'SHELXL97 (Sheldrick, 1997)' _computing_structure_solution 'SHELXS97 (Sheldrick, 1990)' _diffrn_measured_fraction_theta_full 0.998 _diffrn_measured_fraction_theta_max 0.998 _diffrn_measurement_device_type 'Siemens P4 diffractometer' _diffrn_measurement_method \w--2\q _diffrn_radiation_type 'Mo K\a' _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.0397 _diffrn_reflns_limit_h_max 7 _diffrn_reflns_limit_h_min -7 _diffrn_reflns_limit_k_max 9 _diffrn_reflns_limit_k_min -9 _diffrn_reflns_limit_l_max 26 _diffrn_reflns_limit_l_min -26 _diffrn_reflns_number 5013 _diffrn_reflns_theta_full 25.99 _diffrn_reflns_theta_max 25.99 _diffrn_reflns_theta_min 2.74 _diffrn_standards_decay_% 0 _diffrn_standards_interval_count 97 _diffrn_standards_number 3 _exptl_absorpt_coefficient_mu 1.481 _exptl_absorpt_correction_T_max 0.8660 _exptl_absorpt_correction_T_min 0.5619 _exptl_absorpt_correction_type psi-scan _exptl_absorpt_process_details '(North et al., 1968)' _exptl_crystal_colour Colourless _exptl_crystal_density_diffrn 1.591 _exptl_crystal_density_method 'not measured' _exptl_crystal_description Prism _exptl_crystal_F_000 532 _exptl_crystal_size_max 0.44 _exptl_crystal_size_mid 0.38 _exptl_crystal_size_min 0.1 _refine_diff_density_max 0.651 _refine_diff_density_min -0.652 _refine_ls_abs_structure_details 'Flack (1983). Friedel pairs = 1983' _refine_ls_abs_structure_Flack -0.04(3) _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.017 _refine_ls_hydrogen_treatment constr _refine_ls_matrix_type full _refine_ls_number_parameters 280 _refine_ls_number_reflns 4315 _refine_ls_R_factor_gt 0.0384 _refine_ls_shift/su_max 0.001 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w = 1/[\s^2^(Fo^2^)+(0.0639P)^2^+0.1130P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_ref 0.0969 _reflns_number_gt 3886 _reflns_number_total 4315 _reflns_threshold_expression F>4\s(F) _[local]_cod_data_source_file jz1323.cif _[local]_cod_data_source_block miriam _[local]_cod_cif_authors_sg_H-M 'P 21' _cod_database_code 2008579 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 I 0.51522(5) 0.74931(6) 0.898127(13) 0.04410(11) Uani d . 1 I O1 -0.2407(6) 0.3062(6) 0.96527(19) 0.0550(12) Uani d . 1 O O2 0.0583(6) 0.4547(6) 0.97827(17) 0.0478(10) Uani d . 1 O O3 0.0366(5) 0.2324(7) 0.75167(14) 0.0376(8) Uani d . 1 O O4 -0.2869(6) 0.4259(5) 0.67742(17) 0.0453(9) Uani d . 1 O N -0.0819(9) -0.0360(7) 0.8659(3) 0.0613(14) Uani d . 1 N C1 0.2647(7) 0.2956(6) 0.9123(2) 0.0355(12) Uani d . 1 C H1 0.3345 0.2011 0.9349 0.043 Uiso calc R 1 H C2 0.0275(6) 0.2746(10) 0.8935(2) 0.0344(17) Uani d . 1 C C3 -0.0176(7) 0.4088(6) 0.8397(2) 0.0306(10) Uani d . 1 C H3 -0.1144 0.4939 0.8532 0.037 Uiso calc R 1 H C4 0.1992(7) 0.4935(6) 0.8381(2) 0.0311(10) Uani d . 1 C H4 0.2192 0.5551 0.8002 0.037 Uiso calc R 1 H C5 0.2340(8) 0.5994(7) 0.8975(2) 0.0367(11) Uani d . 1 C H5 0.1131 0.6727 0.9017 0.044 Uiso calc R 1 H C6 0.2509(8) 0.4635(7) 0.9479(2) 0.0375(11) Uani d . 1 C H6 0.3737 0.4809 0.9774 0.045 Uiso calc R 1 H C7 0.3529(8) 0.3468(7) 0.8534(2) 0.0362(11) Uani d . 1 C H7A 0.3402 0.2579 0.8227 0.043 Uiso calc R 1 H H7B 0.4970 0.3846 0.8601 0.043 Uiso calc R 1 H C8 -0.0367(9) 0.1001(8) 0.8775(3) 0.0426(13) Uani d . 1 C C9 -0.0750(8) 0.3389(8) 0.9493(2) 0.0413(12) Uani d . 1 C C10 -0.1139(7) 0.3350(6) 0.7784(2) 0.0329(10) Uani d . 1 C H10 -0.2335 0.2640 0.7862 0.039 Uiso calc R 1 H C11 -0.1915(9) 0.4798(7) 0.7355(3) 0.0435(13) Uani d . 1 C H11A -0.2917 0.5467 0.7556 0.052 Uiso calc R 1 H H11B -0.0741 0.5527 0.7290 0.052 Uiso calc R 1 H C12 -0.4959(9) 0.3699(9) 0.6783(3) 0.0500(14) Uani d . 1 C H12A -0.5782 0.4570 0.6960 0.060 Uiso calc R 1 H H12B -0.4995 0.2690 0.7034 0.060 Uiso calc R 1 H C13 -0.5872(10) 0.3314(8) 0.6135(3) 0.0469(13) Uani d . 1 C C14 -0.7881(10) 0.3838(10) 0.5941(3) 0.0612(17) Uani d . 1 C H14 -0.8637 0.4478 0.6199 0.073 Uiso calc R 1 H C15 -0.8772(12) 0.3401(12) 0.5353(4) 0.075(2) Uani d . 1 C H15 -1.0136 0.3729 0.5227 0.090 Uiso calc R 1 H C16 -0.7667(11) 0.251(2) 0.4969(3) 0.077(2) Uani d . 1 C H16 -0.8248 0.2277 0.4572 0.092 Uiso calc R 1 H C17 -0.5691(13) 0.1939(10) 0.5160(3) 0.071(2) Uani d . 1 C H17 -0.4973 0.1256 0.4905 0.085 Uiso calc R 1 H C18 -0.4773(9) 0.2394(17) 0.5740(3) 0.0594(15) Uani d . 1 C H18 -0.3403 0.2072 0.5861 0.071 Uiso calc R 1 H C19 -0.0502(10) 0.0934(8) 0.7156(3) 0.0554(16) Uani d . 1 C H19A -0.1382 0.1356 0.6804 0.066 Uiso calc R 1 H H19B -0.1354 0.0238 0.7399 0.066 Uiso calc R 1 H C20 0.1232(10) -0.0089(7) 0.6947(3) 0.0460(13) Uani d . 1 C C21 0.2889(10) -0.0612(8) 0.7368(3) 0.0514(14) Uani d . 1 C H21 0.2891 -0.0345 0.7782 0.062 Uiso calc R 1 H C22 0.4516(11) -0.1524(9) 0.7165(3) 0.0594(17) Uani d . 1 C H22 0.5611 -0.1871 0.7446 0.071 Uiso calc R 1 H C23 0.4551(13) -0.1928(9) 0.6558(4) 0.074(2) Uani d . 1 C H23 0.5670 -0.2525 0.6424 0.089 Uiso calc R 1 H C24 0.2895(15) -0.1435(10) 0.6146(4) 0.076(2) Uani d . 1 C H24 0.2877 -0.1728 0.5734 0.091 Uiso calc R 1 H C25 0.1283(12) -0.0517(9) 0.6343(3) 0.0631(18) Uani d . 1 C H25 0.0194 -0.0175 0.6060 0.076 Uiso calc R 1 H 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 I 0.04201(17) 0.04591(17) 0.04383(17) -0.0133(2) 0.00125(11) -0.0052(2) O1 0.038(2) 0.076(3) 0.052(2) -0.0071(18) 0.0122(17) 0.0139(19) O2 0.045(2) 0.064(3) 0.036(2) -0.0085(19) 0.0101(17) -0.0045(18) O3 0.0318(14) 0.037(2) 0.0431(16) -0.0006(19) -0.0014(12) -0.008(2) O4 0.041(2) 0.057(2) 0.0346(19) 0.0002(18) -0.0116(16) 0.0049(17) N 0.058(3) 0.050(3) 0.074(4) -0.013(3) -0.001(3) 0.004(3) C1 0.025(2) 0.037(3) 0.043(3) -0.0014(17) -0.0024(19) 0.0045(19) C2 0.027(2) 0.036(5) 0.040(2) -0.001(2) -0.0006(17) 0.007(2) C3 0.025(2) 0.031(2) 0.035(3) 0.0007(19) 0.001(2) 0.002(2) C4 0.028(2) 0.036(2) 0.029(2) -0.0022(19) 0.0034(18) 0.000(2) C5 0.032(2) 0.040(3) 0.038(3) -0.002(2) 0.001(2) -0.005(2) C6 0.029(2) 0.050(3) 0.033(3) -0.003(2) 0.0008(19) 0.003(2) C7 0.027(2) 0.038(3) 0.042(3) 0.003(2) -0.001(2) -0.006(2) C8 0.035(3) 0.044(4) 0.047(3) -0.005(2) -0.002(2) 0.008(3) C9 0.038(3) 0.051(3) 0.036(3) -0.001(2) 0.006(2) 0.009(2) C10 0.027(2) 0.037(2) 0.033(2) 0.001(2) -0.0039(19) 0.000(2) C11 0.045(3) 0.041(3) 0.042(3) 0.005(2) -0.011(2) 0.003(2) C12 0.038(3) 0.070(4) 0.040(3) -0.003(3) -0.005(2) 0.005(3) C13 0.047(3) 0.054(3) 0.039(3) -0.009(3) -0.004(2) 0.006(3) C14 0.048(4) 0.070(4) 0.062(4) -0.002(3) -0.012(3) 0.007(3) C15 0.054(4) 0.100(6) 0.067(5) -0.011(4) -0.021(4) 0.009(4) C16 0.088(5) 0.093(5) 0.045(3) -0.021(8) -0.018(3) 0.011(7) C17 0.091(5) 0.075(6) 0.046(3) -0.008(4) 0.003(3) -0.005(3) C18 0.056(3) 0.072(4) 0.049(3) 0.004(5) -0.004(2) -0.009(6) C19 0.049(3) 0.052(4) 0.061(4) 0.003(3) -0.017(3) -0.020(3) C20 0.051(3) 0.039(3) 0.046(3) 0.000(2) -0.006(3) -0.004(2) C21 0.061(4) 0.048(3) 0.043(3) 0.009(3) -0.005(3) -0.004(3) C22 0.054(4) 0.048(4) 0.075(5) 0.015(3) -0.002(3) 0.005(3) C23 0.081(5) 0.058(4) 0.085(5) 0.024(3) 0.023(4) 0.005(3) C24 0.110(6) 0.065(5) 0.052(4) 0.025(4) 0.010(4) -0.007(3) C25 0.078(5) 0.057(4) 0.050(4) 0.013(3) -0.014(3) -0.010(3) 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' I I -0.4742 1.8119 '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 _geom_angle_publ_flag C9 O2 C6 110.0(4) yes C10 O3 C19 114.6(4) ? C12 O4 C11 114.1(4) ? C7 C1 C6 104.2(4) yes C7 C1 C2 104.0(4) yes C6 C1 C2 97.1(4) yes C7 C1 H1 116.3 ? C6 C1 H1 116.3 ? C2 C1 H1 116.3 ? C8 C2 C9 111.6(5) yes C8 C2 C1 114.2(5) yes C9 C2 C1 103.9(4) yes C8 C2 C3 115.0(4) yes C9 C2 C3 108.0(5) yes C1 C2 C3 103.3(4) yes C10 C3 C4 115.6(4) ? C10 C3 C2 115.0(4) ? C4 C3 C2 101.8(4) yes C10 C3 H3 108.0 ? C4 C3 H3 108.0 ? C2 C3 H3 108.0 ? C7 C4 C5 100.7(4) yes C7 C4 C3 103.3(4) yes C5 C4 C3 105.9(4) yes C7 C4 H4 115.1 ? C5 C4 H4 115.1 ? C3 C4 H4 115.1 ? C6 C5 C4 102.8(4) yes C6 C5 I 112.2(3) yes C4 C5 I 110.9(3) yes C6 C5 H5 110.3 ? C4 C5 H5 110.3 ? I C5 H5 110.3 ? O2 C6 C5 110.8(4) yes O2 C6 C1 106.3(4) yes C5 C6 C1 103.9(4) yes O2 C6 H6 111.8 ? C5 C6 H6 111.8 ? C1 C6 H6 111.8 ? C1 C7 C4 95.8(4) yes C1 C7 H7A 112.6 ? C4 C7 H7A 112.6 ? C1 C7 H7B 112.6 ? C4 C7 H7B 112.6 ? H7A C7 H7B 110.1 ? N C8 C2 178.4(6) yes O1 C9 O2 123.6(5) yes O1 C9 C2 129.3(6) yes O2 C9 C2 107.1(4) yes O3 C10 C11 111.5(4) ? O3 C10 C3 109.9(4) ? C11 C10 C3 109.4(4) ? O3 C10 H10 108.7 ? C11 C10 H10 108.7 ? C3 C10 H10 108.7 ? O4 C11 C10 114.3(5) ? O4 C11 H11A 108.7 ? C10 C11 H11A 108.7 ? O4 C11 H11B 108.7 ? C10 C11 H11B 108.7 ? H11A C11 H11B 107.6 ? O4 C12 C13 109.4(5) ? O4 C12 H12A 109.8 ? C13 C12 H12A 109.8 ? O4 C12 H12B 109.8 ? C13 C12 H12B 109.8 ? H12A C12 H12B 108.2 ? C18 C13 C14 119.0(6) ? C18 C13 C12 121.3(6) ? C14 C13 C12 119.7(6) ? C13 C14 C15 119.8(7) ? C13 C14 H14 120.1 ? C15 C14 H14 120.1 ? C16 C15 C14 120.5(7) ? C16 C15 H15 119.7 ? C14 C15 H15 119.7 ? C15 C16 C17 120.4(6) ? C15 C16 H16 119.8 ? C17 C16 H16 119.8 ? C16 C17 C18 119.4(8) ? C16 C17 H17 120.3 ? C18 C17 H17 120.3 ? C13 C18 C17 120.7(7) ? C13 C18 H18 119.7 ? C17 C18 H18 119.7 ? O3 C19 C20 108.8(5) ? O3 C19 H19A 109.9 ? C20 C19 H19A 109.9 ? O3 C19 H19B 109.9 ? C20 C19 H19B 109.9 ? H19A C19 H19B 108.3 ? C25 C20 C21 118.3(6) ? C25 C20 C19 121.4(6) ? C21 C20 C19 120.3(5) ? C22 C21 C20 119.7(6) ? C22 C21 H21 120.2 ? C20 C21 H21 120.2 ? C23 C22 C21 121.2(6) ? C23 C22 H22 119.4 ? C21 C22 H22 119.4 ? C22 C23 C24 118.9(7) ? C22 C23 H23 120.5 ? C24 C23 H23 120.5 ? C25 C24 C23 120.2(7) ? C25 C24 H24 119.9 ? C23 C24 H24 119.9 ? C20 C25 C24 121.7(7) ? C20 C25 H25 119.1 ? C24 C25 H25 119.1 ? loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_publ_flag I C5 2.159(5) yes O1 C9 1.180(6) yes O2 C9 1.367(7) yes O2 C6 1.461(6) yes O3 C10 1.428(6) ? O3 C19 1.434(7) ? O4 C12 1.415(7) ? O4 C11 1.423(6) ? N C8 1.135(8) yes C1 C7 1.512(7) yes C1 C6 1.545(7) yes C1 C2 1.549(6) yes C1 H1 0.9800 ? C2 C8 1.470(9) yes C2 C9 1.530(8) yes C2 C3 1.590(8) yes C3 C10 1.537(7) ? C3 C4 1.548(7) yes C3 H3 0.9800 ? C4 C7 1.539(7) yes C4 C5 1.544(7) yes C4 H4 0.9800 ? C5 C6 1.536(8) yes C5 H5 0.9800 ? C6 H6 0.9800 ? C7 H7A 0.9700 ? C7 H7B 0.9700 ? C10 C11 1.531(7) ? C10 H10 0.9800 ? C11 H11A 0.9700 ? C11 H11B 0.9700 ? C12 C13 1.513(8) ? C12 H12A 0.9700 ? C12 H12B 0.9700 ? C13 C18 1.375(11) ? C13 C14 1.383(9) ? C14 C15 1.399(10) ? C14 H14 0.9300 ? C15 C16 1.350(14) ? C15 H15 0.9300 ? C16 C17 1.374(12) ? C16 H16 0.9300 ? C17 C18 1.394(9) ? C17 H17 0.9300 ? C18 H18 0.9300 ? C19 C20 1.483(9) ? C19 H19A 0.9700 ? C19 H19B 0.9700 ? C20 C25 1.367(9) ? C20 C21 1.402(8) ? C21 C22 1.377(9) ? C21 H21 0.9300 ? C22 C23 1.370(11) ? C22 H22 0.9300 ? C23 C24 1.383(11) ? C23 H23 0.9300 ? C24 C25 1.367(11) ? C24 H24 0.9300 ? C25 H25 0.9300 ? 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 C7 C1 C2 C8 94.5(5) C6 C1 C2 C8 -158.9(5) C7 C1 C2 C9 -143.8(5) C6 C1 C2 C9 -37.1(5) C7 C1 C2 C3 -31.1(5) C6 C1 C2 C3 75.5(5) C8 C2 C3 C10 -2.2(6) C9 C2 C3 C10 -127.5(5) C1 C2 C3 C10 122.9(5) C8 C2 C3 C4 -128.0(4) C9 C2 C3 C4 106.8(4) C1 C2 C3 C4 -2.9(5) C10 C3 C4 C7 -90.1(5) C2 C3 C4 C7 35.3(5) C10 C3 C4 C5 164.5(4) C2 C3 C4 C5 -70.2(5) C7 C4 C5 C6 -41.0(5) C3 C4 C5 C6 66.3(5) C7 C4 C5 I 79.0(4) C3 C4 C5 I -173.7(3) C9 O2 C6 C5 91.0(5) C9 O2 C6 C1 -21.3(5) C4 C5 C6 O2 -103.8(5) I C5 C6 O2 137.1(4) C4 C5 C6 C1 10.0(5) I C5 C6 C1 -109.1(4) C7 C1 C6 O2 142.1(4) C2 C1 C6 O2 35.7(5) C7 C1 C6 C5 25.1(5) C2 C1 C6 C5 -81.3(4) C6 C1 C7 C4 -49.4(4) C2 C1 C7 C4 51.8(5) C5 C4 C7 C1 55.3(4) C3 C4 C7 C1 -54.0(4) C9 C2 C8 N -10E1(3) C1 C2 C8 N 1E1(3) C3 C2 C8 N 13E1(3) C6 O2 C9 O1 179.0(5) C6 O2 C9 C2 -4.1(6) C8 C2 C9 O1 -32.3(8) C1 C2 C9 O1 -155.8(6) C3 C2 C9 O1 95.0(7) C8 C2 C9 O2 151.1(4) C1 C2 C9 O2 27.6(6) C3 C2 C9 O2 -81.6(5) C19 O3 C10 C11 -89.6(6) C19 O3 C10 C3 148.9(5) C4 C3 C10 O3 49.0(6) C2 C3 C10 O3 -69.3(5) C4 C3 C10 C11 -73.7(5) C2 C3 C10 C11 168.0(4) C12 O4 C11 C10 79.2(6) O3 C10 C11 O4 59.1(6) C3 C10 C11 O4 -179.1(4) C11 O4 C12 C13 174.8(5) O4 C12 C13 C18 45.8(10) O4 C12 C13 C14 -136.7(6) C18 C13 C14 C15 1.1(12) C12 C13 C14 C15 -176.4(7) C13 C14 C15 C16 -1.6(13) C14 C15 C16 C17 3.4(17) C15 C16 C17 C18 -4.6(17) C14 C13 C18 C17 -2.3(14) C12 C13 C18 C17 175.1(8) C16 C17 C18 C13 4.1(15) C10 O3 C19 C20 -175.8(5) O3 C19 C20 C25 -129.1(7) O3 C19 C20 C21 49.6(8) C25 C20 C21 C22 0.4(10) C19 C20 C21 C22 -178.3(6) C20 C21 C22 C23 0.2(11) C21 C22 C23 C24 -1.3(12) C22 C23 C24 C25 1.8(13) C21 C20 C25 C24 0.1(11) C19 C20 C25 C24 178.9(7) C23 C24 C25 C20 -1.3(13)