#------------------------------------------------------------------------------ #$Date: 2011-09-10 04:16:28 +0100 (Sat, 10 Sep 2011) $ #$Revision: 25271 $ #$URL: svn://www.crystallography.net/cod/cif/2/2200939.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_2200939 loop_ _publ_author_name 'Necefoglu, Hacali' 'Clegg, William' 'Scott, Andrew J.' _publ_section_title ; A linear trinuclear CaZn~2~ complex with bridging benzoate ligands ; _journal_issue 3 _journal_name_full 'Acta Crystallographica Section E' _journal_page_first m123 _journal_page_last m124 _journal_volume 58 _journal_year 2002 _chemical_formula_iupac '[Ca Zn2 (C7 H5 O2)6 (C10 H14 N2 O)2]' _chemical_formula_moiety 'C62 H58 Ca N4 O14 Zn2' _chemical_formula_sum 'C62 H58 Ca N4 O14 Zn2' _chemical_formula_weight 1253.94 _chemical_name_systematic ; ? ; _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _atom_sites_solution_hydrogens geom _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _audit_creation_method SHELXL-97 _cell_angle_alpha 90.00 _cell_angle_beta 107.207(3) _cell_angle_gamma 90.00 _cell_formula_units_Z 2 _cell_length_a 16.347(2) _cell_length_b 10.7691(13) _cell_length_c 17.647(2) _cell_measurement_reflns_used 7387 _cell_measurement_temperature 160(2) _cell_measurement_theta_max 25.4 _cell_measurement_theta_min 2.0 _cell_volume 2967.6(6) _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, 1997)' _diffrn_ambient_temperature 160(2) _diffrn_detector_area_resol_mean 8.192 _diffrn_measured_fraction_theta_full .937 _diffrn_measured_fraction_theta_max .892 _diffrn_measurement_device_type 'Siemens SMART 1K CCD' _diffrn_measurement_method '\w rotation with narrow frames' _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'sealed tube' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength .71073 _diffrn_reflns_av_R_equivalents .0394 _diffrn_reflns_av_sigmaI/netI .0384 _diffrn_reflns_limit_h_max 18 _diffrn_reflns_limit_h_min -17 _diffrn_reflns_limit_k_max 12 _diffrn_reflns_limit_k_min -12 _diffrn_reflns_limit_l_max 15 _diffrn_reflns_limit_l_min -20 _diffrn_reflns_number 12317 _diffrn_reflns_theta_full 25.00 _diffrn_reflns_theta_max 25.5 _diffrn_reflns_theta_min 1.5 _diffrn_standards_decay_% 0 _diffrn_standards_number 0 _exptl_absorpt_coefficient_mu .963 _exptl_absorpt_correction_T_max .925 _exptl_absorpt_correction_T_min .860 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_process_details '(SHELXTL; Sheldrick, 1997)' _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.403 _exptl_crystal_density_method 'not measured' _exptl_crystal_description block _exptl_crystal_F_000 1300 _exptl_crystal_size_max .30 _exptl_crystal_size_mid .20 _exptl_crystal_size_min .16 _refine_diff_density_max .407 _refine_diff_density_min -.484 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.121 _refine_ls_hydrogen_treatment constr _refine_ls_matrix_type full _refine_ls_number_parameters 376 _refine_ls_number_reflns 4938 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.121 _refine_ls_R_factor_all .0519 _refine_ls_R_factor_gt .0398 _refine_ls_shift/su_max <0.001 _refine_ls_shift/su_mean .000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w = 1/[\s^2^(Fo^2^)+(0.0348P)^2^+2.7427P] where P = (Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt .0894 _refine_ls_wR_factor_ref .0966 _reflns_number_gt 4193 _reflns_number_total 4938 _reflns_threshold_expression I>2\s(I) _[local]_cod_data_source_file na6136.cif _[local]_cod_data_source_block I _[local]_cod_cif_authors_sg_H-M 'P 21/n' _cod_database_code 2200939 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' 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 Zn .20197(2) .19710(3) .04078(2) .02835(11) Uani d . 1 Zn Ca .0000 .0000 .0000 .02526(19) Uani d S 1 Ca N1 .31448(15) .2969(2) .05654(15) .0326(6) Uani d . 1 N C1 .3254(2) .4128(3) .0858(2) .0402(8) Uani d . 1 C H1 .2846 .4472 .1087 .048 Uiso d R 1 H C2 .4010(2) .4774(3) .0961(2) .0494(9) Uani d . 1 C H2 .4008 .5642 .1054 .059 Uiso d R 1 H C3 .4671(2) .4218(3) .0753(2) .0457(9) Uani d . 1 C H3 .5205 .4637 .0862 .055 Uiso d R 1 H C4 .45723(18) .3021(3) .04543(18) .0331(7) Uani d . 1 C C5 .37961(18) .2441(3) .03646(18) .0326(7) Uani d . 1 C H5 .3727 .1613 .0171 .039 Uiso d R 1 H C6 .52377(18) .2415(3) .01435(18) .0329(7) Uani d . 1 C O1 .52052(14) .2591(2) -.05501(13) .0457(6) Uani d . 1 O N2 .58412(15) .1708(2) .06381(15) .0336(6) Uani d . 1 N C7 .64967(18) .1126(3) .03345(19) .0368(7) Uani d . 1 C H7A .6241 .0942 -.0237 .044 Uiso d R 1 H H7B .6681 .0330 .0613 .044 Uiso d R 1 H C8 .72458(19) .1991(3) .0403(2) .0421(8) Uani d . 1 C H8A .7680 .1551 .0224 .063 Uiso d R 1 H H8B .7484 .2208 .0965 .063 Uiso d R 1 H H8C .7075 .2750 .0090 .063 Uiso d R 1 H C9 .5898(2) .1471(3) .14682(18) .0415(8) Uani d . 1 C H9A .5614 .2180 .1645 .050 Uiso d R 1 H H9B .6505 .1459 .1796 .050 Uiso d R 1 H C10 .5496(2) .0237(4) .1576(2) .0596(11) Uani d . 1 C H10A .4962 .0128 .1146 .089 Uiso d R 1 H H10B .5370 .0271 .2085 .089 Uiso d R 1 H H10C .5880 -.0464 .1579 .089 Uiso d R 1 H O2 .13990(12) .32848(19) .07535(12) .0331(5) Uani d . 1 O O3 .02892(14) .2024(2) .03401(14) .0445(6) Uani d . 1 O C11 .06069(19) .3030(3) .06260(17) .0305(7) Uani d . 1 C C12 .00513(17) .3999(3) .08220(16) .0285(6) Uani d . 1 C C13 .0394(2) .5109(3) .11757(19) .0364(7) Uani d . 1 C H13 .0994 .5250 .1315 .044 Uiso d R 1 H C14 -.0128(2) .5995(3) .1358(2) .0462(8) Uani d . 1 C H14 .0083 .6770 .1593 .055 Uiso d R 1 H C15 -.1001(2) .5788(3) .1178(2) .0454(9) Uani d . 1 C H15 -.1370 .6380 .1307 .054 Uiso d R 1 H C16 -.1344(2) .4694(3) .0823(2) .0429(8) Uani d . 1 C H16 -.1947 .4582 .0672 .051 Uiso d R 1 H C17 -.08257(19) .3798(3) .06443(18) .0371(7) Uani d . 1 C H17 -.1057 .3010 .0450 .044 Uiso d R 1 H O4 .18972(12) .14893(19) -.06907(12) .0352(5) Uani d . 1 O O5 .07706(14) .0230(2) -.09016(13) .0449(6) Uani d . 1 O C18 .13757(18) .0683(3) -.10940(17) .0306(7) Uani d . 1 C C19 .15360(17) .0265(3) -.18477(17) .0292(6) Uani d . 1 C C20 .11088(19) -.0769(3) -.22417(19) .0399(8) Uani d . 1 C H20 .0714 -.1190 -.2031 .048 Uiso d R 1 H C21 .1268(2) -.1202(3) -.2926(2) .0473(9) Uani d . 1 C H21 .0957 -.1897 -.3197 .057 Uiso d R 1 H C22 .1856(2) -.0579(4) -.3216(2) .0487(9) Uani d . 1 C H22 .2004 -.0875 -.3665 .058 Uiso d R 1 H C23 .2278(2) .0450(3) -.28328(19) .0453(8) Uani d . 1 C H23 .2673 .0891 -.3034 .054 Uiso d R 1 H C24 .21239(19) .0873(3) -.21453(18) .0369(7) Uani d . 1 C H24 .2407 .1601 -.1895 .044 Uiso d R 1 H O6 .25188(13) .0520(2) .10273(12) .0367(5) Uani d . 1 O O7 .12999(13) -.0504(2) .09010(13) .0442(6) Uani d . 1 O C25 .20928(18) -.0414(3) .11458(17) .0319(7) Uani d . 1 C C26 .26071(18) -.1454(3) .16197(16) .0309(7) Uani d . 1 C C27 .2201(2) -.2521(3) .17617(19) .0435(8) Uani d . 1 C H27 .1595 -.2584 .1561 .052 Uiso d R 1 H C28 .2677(2) -.3484(3) .2199(2) .0521(9) Uani d . 1 C H28 .2403 -.4241 .2259 .063 Uiso d R 1 H C29 .3555(2) -.3397(3) .24893(19) .0463(9) Uani d . 1 C H29 .3871 -.4007 .2846 .056 Uiso d R 1 H C30 .3963(2) -.2341(3) .23457(19) .0419(8) Uani d . 1 C H30 .4571 -.2315 .2496 .050 Uiso d R 1 H C31 .34922(18) -.1373(3) .19134(17) .0340(7) Uani d . 1 C H31 .3776 -.0633 .1838 .041 Uiso d 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 Zn .02146(18) .02655(19) .0385(2) -.00234(14) .01103(14) -.00277(15) Ca .0171(4) .0261(4) .0337(4) -.0032(3) .0093(3) -.0029(3) N1 .0243(12) .0295(14) .0447(15) -.0023(11) .0111(11) -.0059(11) C1 .0341(17) .0354(18) .057(2) -.0060(14) .0237(15) -.0112(16) C2 .0422(19) .036(2) .077(3) -.0135(16) .0285(18) -.0182(18) C3 .0315(17) .045(2) .064(2) -.0150(15) .0195(16) -.0185(17) C4 .0253(15) .0350(17) .0377(17) -.0031(13) .0071(13) -.0023(14) C5 .0279(15) .0276(16) .0431(18) .0001(13) .0117(13) -.0038(14) C6 .0249(15) .0328(17) .0403(18) -.0048(13) .0088(14) -.0050(14) O1 .0388(13) .0568(16) .0432(14) .0108(11) .0147(11) .0046(11) N2 .0275(13) .0364(15) .0370(14) .0006(11) .0097(11) -.0024(12) C7 .0283(16) .0382(19) .0432(18) .0051(14) .0098(14) -.0066(15) C8 .0278(16) .046(2) .054(2) .0000(15) .0147(15) -.0032(16) C9 .0349(17) .052(2) .0353(17) .0007(16) .0062(14) -.0033(16) C10 .053(2) .077(3) .045(2) -.020(2) .0097(18) .006(2) O2 .0273(11) .0330(12) .0402(12) -.0004(9) .0122(9) -.0036(9) O3 .0447(13) .0304(13) .0613(15) -.0049(11) .0199(11) -.0100(11) C11 .0327(16) .0280(17) .0329(16) -.0021(13) .0129(13) .0006(13) C12 .0281(15) .0284(16) .0316(15) .0018(13) .0130(12) .0039(13) C13 .0316(16) .0325(17) .0487(19) -.0025(14) .0174(14) -.0032(15) C14 .052(2) .0306(18) .063(2) .0003(16) .0291(18) -.0047(17) C15 .050(2) .038(2) .059(2) .0131(16) .0325(18) .0108(17) C16 .0306(17) .050(2) .052(2) .0053(16) .0186(15) .0083(17) C17 .0304(16) .0379(19) .0449(18) -.0047(14) .0142(14) .0001(15) O4 .0333(11) .0318(12) .0418(12) -.0026(10) .0132(10) -.0040(10) O5 .0376(12) .0562(15) .0486(14) -.0097(11) .0245(11) -.0083(12) C18 .0253(15) .0306(17) .0371(17) .0023(13) .0110(13) .0012(13) C19 .0226(14) .0313(17) .0320(16) .0019(12) .0055(12) .0000(13) C20 .0286(16) .047(2) .0427(18) -.0037(15) .0091(14) -.0061(16) C21 .0410(19) .051(2) .0421(19) .0030(17) .0001(16) -.0146(17) C22 .046(2) .066(3) .0339(18) .0181(19) .0103(15) -.0015(17) C23 .0437(19) .058(2) .0395(18) .0077(17) .0212(16) .0072(17) C24 .0358(17) .0373(18) .0406(18) .0014(14) .0160(14) .0032(15) O6 .0315(11) .0323(12) .0452(13) .0007(10) .0097(10) .0053(10) O7 .0243(11) .0497(15) .0519(14) .0000(10) .0007(10) .0043(11) C25 .0294(16) .0376(18) .0283(15) .0005(14) .0077(13) -.0051(13) C26 .0312(15) .0338(17) .0259(15) -.0014(13) .0057(12) -.0033(13) C27 .0372(18) .046(2) .0435(19) -.0085(16) .0062(15) .0065(16) C28 .060(2) .043(2) .047(2) -.0087(18) .0058(18) .0133(17) C29 .058(2) .043(2) .0325(18) .0128(18) .0050(16) .0059(15) C30 .0329(17) .049(2) .0415(18) .0106(16) .0083(15) -.0015(16) C31 .0290(16) .0360(18) .0357(17) .0020(14) .0073(13) -.0001(14) loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C .0033 .0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H .0000 .0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' N N .0061 .0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O .0106 .0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Zn Zn .2839 1.4301 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Ca Ca .2262 .3064 '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_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle _geom_angle_publ_flag N1 Zn O2 . . 96.04(9) yes N1 Zn O4 . . 95.55(9) yes N1 Zn O6 . . 97.64(9) yes O2 Zn O4 . . 126.44(9) yes O2 Zn O6 . . 125.51(9) yes O4 Zn O6 . . 104.28(9) yes O3 Ca O3 . 3 180.00(12) . O3 Ca O5 . . 88.06(8) yes O3 Ca O5 3 3 88.06(8) ? O3 Ca O5 . 3 91.94(8) ? O3 Ca O5 3 . 91.94(8) ? O3 Ca O7 . . 88.09(8) yes O3 Ca O7 3 3 88.09(8) ? O3 Ca O7 . 3 91.91(8) ? O3 Ca O7 3 . 91.91(8) ? O5 Ca O5 . 3 180.00(7) ? O5 Ca O7 . . 85.49(8) yes O5 Ca O7 3 3 85.49(8) ? O5 Ca O7 3 . 94.51(8) ? O5 Ca O7 . 3 94.51(8) ? O7 Ca O7 . 3 180.00(18) ? Zn N1 C1 . . 123.0(2) ? Zn N1 C5 . . 119.0(2) ? C1 N1 C5 . . 118.0(3) ? N1 C1 C2 . . 122.0(3) ? C1 C2 C3 . . 119.2(3) ? C2 C3 C4 . . 119.6(3) ? C3 C4 C5 . . 117.7(3) ? C3 C4 C6 . . 121.8(3) ? C5 C4 C6 . . 120.1(3) ? N1 C5 C4 . . 123.5(3) ? C4 C6 O1 . . 118.3(3) ? C4 C6 N2 . . 118.7(3) ? O1 C6 N2 . . 123.0(3) ? C6 N2 C7 . . 118.6(3) ? C6 N2 C9 . . 124.5(3) ? C7 N2 C9 . . 117.0(2) ? N2 C7 C8 . . 111.6(3) ? N2 C9 C10 . . 112.1(3) ? Zn O2 C11 . . 112.66(18) yes Ca O3 C11 . . 166.6(2) yes O2 C11 O3 . . 122.6(3) ? O2 C11 C12 . . 117.7(3) ? O3 C11 C12 . . 119.6(3) ? C11 C12 C13 . . 121.0(3) ? C11 C12 C17 . . 119.8(3) ? C13 C12 C17 . . 119.2(3) ? C12 C13 C14 . . 120.3(3) ? C13 C14 C15 . . 120.1(3) ? C14 C15 C16 . . 119.7(3) ? C15 C16 C17 . . 120.6(3) ? C12 C17 C16 . . 120.0(3) ? Zn O4 C18 . . 126.02(19) yes Ca O5 C18 . . 150.7(2) yes O4 C18 O5 . . 124.9(3) ? O4 C18 C19 . . 115.9(2) ? O5 C18 C19 . . 119.2(3) ? C18 C19 C20 . . 119.5(3) ? C18 C19 C24 . . 121.1(3) ? C20 C19 C24 . . 119.4(3) ? C19 C20 C21 . . 120.6(3) ? C20 C21 C22 . . 119.1(3) ? C21 C22 C23 . . 120.7(3) ? C22 C23 C24 . . 120.0(3) ? C19 C24 C23 . . 120.1(3) ? Zn O6 C25 . . 124.59(19) yes Ca O7 C25 . . 150.8(2) yes O6 C25 O7 . . 124.7(3) ? O6 C25 C26 . . 115.9(2) ? O7 C25 C26 . . 119.4(3) ? C25 C26 C27 . . 120.1(3) ? C25 C26 C31 . . 120.8(3) ? C27 C26 C31 . . 119.1(3) ? C26 C27 C28 . . 120.1(3) ? C27 C28 C29 . . 120.5(3) ? C28 C29 C30 . . 119.7(3) ? C29 C30 C31 . . 120.2(3) ? C26 C31 C30 . . 120.4(3) ? N1 C1 H1 . . 119.7 ? C2 C1 H1 . . 117.4 ? C3 C2 H2 . . 121.1 ? C1 C2 H2 . . 118.0 ? C2 C3 H3 . . 119.1 ? C4 C3 H3 . . 121.1 ? N1 C5 H5 . . 118.2 ? C4 C5 H5 . . 118.2 ? N2 C7 H7A . . 108.8 ? C8 C7 H7A . . 107.0 ? N2 C7 H7B . . 109.5 ? C8 C7 H7B . . 111.9 ? H7A C7 H7B . . 107.9 ? C7 C8 H8A . . 108.8 ? C7 C8 H8B . . 107.3 ? H8A C8 H8B . . 109.5 ? C7 C8 H8C . . 112.3 ? H8A C8 H8C . . 109.5 ? H8B C8 H8C . . 109.5 ? N2 C9 H9A . . 106.6 ? C10 C9 H9A . . 112.0 ? N2 C9 H9B . . 110.0 ? C10 C9 H9B . . 108.1 ? H9A C9 H9B . . 107.9 ? C9 C10 H10A . . 109.0 ? C9 C10 H10B . . 107.3 ? H10A C10 H10B . . 109.5 ? C9 C10 H10C . . 112.0 ? H10A C10 H10C . . 109.5 ? H10B C10 H10C . . 109.5 ? C14 C13 H13 . . 119.4 ? C12 C13 H13 . . 120.2 ? C13 C14 H14 . . 122.7 ? C15 C14 H14 . . 117.2 ? C16 C15 H15 . . 118.9 ? C14 C15 H15 . . 121.4 ? C15 C16 H16 . . 119.1 ? C17 C16 H16 . . 120.3 ? C16 C17 H17 . . 120.0 ? C12 C17 H17 . . 119.6 ? C19 C20 H20 . . 119.1 ? C21 C20 H20 . . 120.2 ? C22 C21 H21 . . 121.5 ? C20 C21 H21 . . 119.4 ? C23 C22 H22 . . 117.8 ? C21 C22 H22 . . 121.3 ? C22 C23 H23 . . 121.2 ? C24 C23 H23 . . 118.8 ? C23 C24 H24 . . 119.2 ? C19 C24 H24 . . 120.7 ? C28 C27 H27 . . 120.4 ? C26 C27 H27 . . 119.6 ? C29 C28 H28 . . 119.4 ? C27 C28 H28 . . 119.9 ? C28 C29 H29 . . 120.2 ? C30 C29 H29 . . 119.6 ? C29 C30 H30 . . 119.7 ? C31 C30 H30 . . 119.8 ? C30 C31 H31 . . 119.6 ? C26 C31 H31 . . 119.9 ? loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag Zn N1 . 2.077(2) yes Zn O2 . 1.942(2) yes Zn O4 . 1.959(2) yes Zn O6 . 1.943(2) yes Ca O3 . 2.273(2) yes Ca O3 3 2.273(2) . Ca O5 . 2.316(2) yes Ca O5 3 2.316(2) ? Ca O7 . 2.311(2) yes Ca O7 3 2.311(2) ? N1 C1 . 1.342(4) ? N1 C5 . 1.343(4) ? C1 C2 . 1.382(4) ? C2 C3 . 1.377(5) ? C3 C4 . 1.384(4) ? C4 C5 . 1.380(4) ? C4 C6 . 1.505(4) ? C6 O1 . 1.224(4) ? C6 N2 . 1.344(4) ? N2 C7 . 1.472(4) ? N2 C9 . 1.463(4) ? C7 C8 . 1.515(4) ? C9 C10 . 1.519(5) ? O2 C11 . 1.277(3) yes O3 C11 . 1.242(3) yes C11 C12 . 1.489(4) ? C12 C13 . 1.388(4) ? C12 C17 . 1.391(4) ? C13 C14 . 1.380(4) ? C14 C15 . 1.386(5) ? C15 C16 . 1.374(5) ? C16 C17 . 1.381(4) ? O4 C18 . 1.276(3) yes O5 C18 . 1.238(3) yes C18 C19 . 1.499(4) ? C19 C20 . 1.387(4) ? C19 C24 . 1.388(4) ? C20 C21 . 1.390(4) ? C21 C22 . 1.388(5) ? C22 C23 . 1.373(5) ? C23 C24 . 1.387(4) ? O6 C25 . 1.275(4) yes O7 C25 . 1.243(3) yes C25 C26 . 1.498(4) ? C26 C27 . 1.387(4) ? C26 C31 . 1.388(4) ? C27 C28 . 1.386(5) ? C28 C29 . 1.378(5) ? C29 C30 . 1.379(5) ? C30 C31 . 1.384(4) ? C1 H1 . .950 ? C2 H2 . .950 ? C3 H3 . .950 ? C5 H5 . .950 ? C7 H7A . .990 ? C7 H7B . .990 ? C8 H8A . .980 ? C8 H8B . .980 ? C8 H8C . .980 ? C9 H9A . .990 ? C9 H9B . .990 ? C10 H10A . .980 ? C10 H10B . .980 ? C10 H10C . .980 ? C13 H13 . .950 ? C14 H14 . .950 ? C15 H15 . .950 ? C16 H16 . .950 ? C17 H17 . .950 ? C20 H20 . .950 ? C21 H21 . .950 ? C22 H22 . .950 ? C23 H23 . .950 ? C24 H24 . .950 ? C27 H27 . .950 ? C28 H28 . .950 ? C29 H29 . .950 ? C30 H30 . .950 ? C31 H31 . .950 ?