# Electronic Supplementary Material (ESI) for Chemical Communications # This journal is © The Royal Society of Chemistry 2014 ####################################################################### # # Cambridge Crystallographic Data Centre # CCDC # ####################################################################### # # This CIF contains data from an original supplementary publication # deposited with the CCDC, and may include chemical, crystal, # experimental, refinement, atomic coordinates, # anisotropic displacement parameters and molecular geometry data, # as required by the journal to which it was submitted. # # This CIF is provided on the understanding that it is used for bona # fide research purposes only. It may contain copyright material # of the CCDC or of third parties, and may not be copied or further # disseminated in any form, whether machine-readable or not, # except for the purpose of generating routine backup copies # on your local computer system. # # For further information on the CCDC, data deposition and # data retrieval see: # www.ccdc.cam.ac.uk # # Bona fide researchers may freely download Mercury and enCIFer # from this site to visualise CIF-encoded structures and # to carry out CIF format checking respectively. # data_130619_pyj0614_2 _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety 'C33 H24 O4' _chemical_formula_sum 'C33 H24 O4' _chemical_formula_weight 484.52 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' _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M 'P 21 21 21' _symmetry_space_group_name_Hall 'P 2ac 2ab' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x+1/2, -y, z+1/2' 'x+1/2, -y+1/2, -z' '-x, y+1/2, -z+1/2' _cell_length_a 10.5563(6) _cell_length_b 13.0186(6) _cell_length_c 18.3454(10) _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_volume 2521.2(2) _cell_formula_units_Z 4 _cell_measurement_temperature 170(2) _cell_measurement_reflns_used 4331 _cell_measurement_theta_min 3.3142 _cell_measurement_theta_max 29.3858 _exptl_crystal_description block _exptl_crystal_colour yellow _exptl_crystal_size_max 0.38 _exptl_crystal_size_mid 0.32 _exptl_crystal_size_min 0.30 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.276 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 1016 _exptl_absorpt_coefficient_mu 0.083 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_correction_T_min 0.9691 _exptl_absorpt_correction_T_max 0.9755 _exptl_absorpt_process_details ; CrysAlis PRO (Agilent Technologies, 2011) ; _exptl_special_details ; ? ; _diffrn_ambient_temperature 170(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 'Xcalibur, Atlas, Gemini ultra' _diffrn_measurement_method '\w scans' _diffrn_detector_area_resol_mean 10.3592 _diffrn_standards_number ? _diffrn_standards_interval_count ? _diffrn_standards_interval_time ? _diffrn_standards_decay_% ? _diffrn_reflns_number 15921 _diffrn_reflns_av_R_equivalents 0.0403 _diffrn_reflns_av_sigmaI/netI 0.0248 _diffrn_reflns_limit_h_min -12 _diffrn_reflns_limit_h_max 11 _diffrn_reflns_limit_k_min -12 _diffrn_reflns_limit_k_max 15 _diffrn_reflns_limit_l_min -22 _diffrn_reflns_limit_l_max 21 _diffrn_reflns_theta_min 3.32 _diffrn_reflns_theta_max 25.35 _reflns_number_total 2613 _reflns_number_gt 2274 _reflns_threshold_expression >2sigma(I) _computing_cell_refinement 'CrysAlis PRO (Agilent Technologies, 2011)' _computing_data_collection 'CrysAlis PRO' _computing_data_reduction 'CrysAlis PRO' _computing_molecular_graphics 'OLEX2 (Dolomanov et al., 2009)' _computing_publication_material OLEX2 _computing_structure_solution 'SHELXS-97 (Sheldrick, 2008)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 2008)' _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^)+(0.0269P)^2^+0.4623P] 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 mixed _refine_ls_extinction_method none _refine_ls_extinction_coef ? _refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881' _refine_ls_abs_structure_Flack 0.7(12) _chemical_absolute_configuration unk _refine_ls_number_reflns 2613 _refine_ls_number_parameters 334 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.0405 _refine_ls_R_factor_gt 0.0318 _refine_ls_wR_factor_ref 0.0705 _refine_ls_wR_factor_gt 0.0661 _refine_ls_goodness_of_fit_ref 1.037 _refine_ls_restrained_S_all 1.037 _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 O1 O 0.37439(14) 0.44871(12) 0.07926(9) 0.0472(4) Uani 1 1 d . . . O2 O 0.35703(18) 0.51574(12) 0.23995(10) 0.0587(5) Uani 1 1 d . . . O3 O 0.10220(13) 0.57524(10) 0.12418(7) 0.0312(3) Uani 1 1 d . . . O4 O -0.00449(14) 0.45735(10) 0.18913(8) 0.0410(4) Uani 1 1 d . . . C1 C 0.1800(2) 0.40026(14) 0.02557(11) 0.0303(5) Uani 1 1 d . . . C2 C 0.0557(2) 0.42589(17) 0.00804(11) 0.0342(5) Uani 1 1 d . . . H2 H 0.0167 0.4838 0.0301 0.041 Uiso 1 1 calc R . . C3 C -0.0112(2) 0.36676(18) -0.04172(11) 0.0422(6) Uani 1 1 d . . . H3 H -0.0958 0.3848 -0.0539 0.051 Uiso 1 1 calc R . . C4 C 0.0441(3) 0.28224(19) -0.07353(12) 0.0476(6) Uani 1 1 d . . . H4 H -0.0031 0.2406 -0.1062 0.057 Uiso 1 1 calc R . . C5 C 0.1683(3) 0.25824(19) -0.05771(14) 0.0527(7) Uani 1 1 d . . . H5 H 0.2071 0.2008 -0.0806 0.063 Uiso 1 1 calc R . . C6 C 0.2365(2) 0.31667(17) -0.00921(12) 0.0412(5) Uani 1 1 d . . . H6 H 0.3224 0.3001 0.0007 0.049 Uiso 1 1 calc R . . C7 C 0.2592(2) 0.45285(15) 0.08201(11) 0.0318(5) Uani 1 1 d . . . C8 C 0.3319(2) 0.67272(16) 0.17679(12) 0.0352(5) Uani 1 1 d . . . C9 C 0.3108(2) 0.72008(17) 0.11004(13) 0.0386(5) Uani 1 1 d . . . H9 H 0.2722 0.6829 0.0714 0.046 Uiso 1 1 calc R . . C10 C 0.3461(2) 0.82165(18) 0.09976(15) 0.0468(6) Uani 1 1 d . . . H10 H 0.3329 0.8535 0.0538 0.056 Uiso 1 1 calc R . . C11 C 0.4002(2) 0.87664(18) 0.15612(15) 0.0526(7) Uani 1 1 d . . . H11 H 0.4242 0.9462 0.1489 0.063 Uiso 1 1 calc R . . C12 C 0.4194(3) 0.83053(18) 0.22264(16) 0.0565(7) Uani 1 1 d . . . H12 H 0.4552 0.8688 0.2616 0.068 Uiso 1 1 calc R . . C13 C 0.3869(2) 0.72875(18) 0.23295(14) 0.0479(6) Uani 1 1 d . . . H13 H 0.4021 0.6969 0.2787 0.058 Uiso 1 1 calc R . . C14 C 0.3025(2) 0.56232(16) 0.19189(12) 0.0383(5) Uani 1 1 d . . . C15 C 0.1417(2) 0.31502(15) 0.18520(11) 0.0352(5) Uani 1 1 d . . . C16 C 0.0509(2) 0.25781(16) 0.14853(13) 0.0421(6) Uani 1 1 d . . . H16 H -0.0253 0.2895 0.1325 0.051 Uiso 1 1 calc R . . C17 C 0.0717(3) 0.15419(17) 0.13529(14) 0.0492(6) Uani 1 1 d . . . H17 H 0.0102 0.1152 0.1095 0.059 Uiso 1 1 calc R . . C18 C 0.1811(3) 0.10762(18) 0.15935(14) 0.0506(7) Uani 1 1 d . . . H18 H 0.1953 0.0369 0.1497 0.061 Uiso 1 1 calc R . . C19 C 0.2699(2) 0.16348(18) 0.19740(13) 0.0477(6) Uani 1 1 d . . . H19 H 0.3444 0.1309 0.2150 0.057 Uiso 1 1 calc R . . C20 C 0.2505(2) 0.26739(17) 0.21009(12) 0.0416(6) Uani 1 1 d . . . H20 H 0.3122 0.3060 0.2360 0.050 Uiso 1 1 calc R . . C21 C 0.1240(2) 0.42889(16) 0.19950(12) 0.0366(5) Uani 1 1 d . . . H21 H 0.1480 0.4436 0.2512 0.044 Uiso 1 1 calc R . . C22 C 0.19834(19) 0.50602(15) 0.14792(11) 0.0321(5) Uani 1 1 d . . . C23 C -0.0025(2) 0.56320(15) 0.17347(12) 0.0362(5) Uani 1 1 d . . . H23 H 0.0134 0.6032 0.2191 0.043 Uiso 1 1 calc R . . C24 C -0.1230(2) 0.59829(16) 0.13882(12) 0.0370(5) Uani 1 1 d . . . C25 C -0.2208(2) 0.53179(19) 0.12704(16) 0.0544(7) Uani 1 1 d . . . H25 H -0.2110 0.4614 0.1394 0.065 Uiso 1 1 calc R . . C26 C -0.3359(2) 0.5659(2) 0.09690(19) 0.0692(9) Uani 1 1 d . . . H26 H -0.4023 0.5182 0.0880 0.083 Uiso 1 1 calc R . . C27 C -0.3525(2) 0.6665(2) 0.08050(17) 0.0619(8) Uani 1 1 d . . . H27 H -0.4311 0.6888 0.0609 0.074 Uiso 1 1 calc R . . C28 C -0.2546(2) 0.73895(19) 0.09216(13) 0.0444(6) Uani 1 1 d . . . C29 C -0.1365(2) 0.70469(16) 0.12069(12) 0.0358(5) Uani 1 1 d . . . C30 C -0.0394(2) 0.77774(16) 0.13099(12) 0.0392(5) Uani 1 1 d . . . H30 H 0.0406 0.7562 0.1492 0.047 Uiso 1 1 calc R . . C31 C -0.0587(3) 0.87882(18) 0.11512(14) 0.0502(6) Uani 1 1 d . . . H31 H 0.0082 0.9267 0.1219 0.060 Uiso 1 1 calc R . . C32 C -0.1759(3) 0.9130(2) 0.08894(13) 0.0539(7) Uani 1 1 d . . . H32 H -0.1889 0.9839 0.0793 0.065 Uiso 1 1 calc R . . C33 C -0.2705(3) 0.8450(2) 0.07731(13) 0.0530(7) Uani 1 1 d . . . H33 H -0.3493 0.8688 0.0588 0.064 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 0.0276(9) 0.0452(9) 0.0689(11) -0.0087(8) -0.0006(8) -0.0005(8) O2 0.0660(12) 0.0423(10) 0.0677(11) 0.0074(9) -0.0338(10) -0.0012(9) O3 0.0263(8) 0.0261(7) 0.0411(8) 0.0012(6) -0.0012(6) 0.0011(6) O4 0.0389(9) 0.0280(7) 0.0562(9) 0.0023(7) 0.0122(8) 0.0009(7) C1 0.0316(11) 0.0262(10) 0.0333(11) 0.0028(8) 0.0053(9) -0.0043(9) C2 0.0325(12) 0.0335(11) 0.0367(11) 0.0023(10) 0.0006(9) -0.0026(10) C3 0.0389(13) 0.0518(14) 0.0361(12) 0.0046(11) -0.0028(11) -0.0094(12) C4 0.0568(17) 0.0494(14) 0.0366(12) -0.0073(12) 0.0002(12) -0.0180(13) C5 0.0630(19) 0.0431(14) 0.0520(15) -0.0142(12) 0.0078(14) -0.0022(13) C6 0.0399(14) 0.0369(12) 0.0467(13) -0.0036(10) 0.0027(11) -0.0001(10) C7 0.0278(11) 0.0228(10) 0.0450(12) 0.0046(9) -0.0003(10) -0.0019(9) C8 0.0270(12) 0.0320(11) 0.0465(12) -0.0051(10) -0.0070(10) 0.0007(10) C9 0.0322(12) 0.0351(12) 0.0485(13) -0.0036(10) -0.0049(10) -0.0013(10) C10 0.0384(14) 0.0388(13) 0.0631(16) 0.0076(12) 0.0012(12) -0.0010(11) C11 0.0403(15) 0.0301(12) 0.087(2) -0.0044(13) -0.0037(14) -0.0030(11) C12 0.0526(17) 0.0386(14) 0.0782(19) -0.0176(13) -0.0179(15) -0.0026(12) C13 0.0468(15) 0.0417(13) 0.0554(14) -0.0076(11) -0.0158(13) -0.0009(12) C14 0.0360(13) 0.0340(12) 0.0449(13) -0.0040(10) -0.0081(11) 0.0034(10) C15 0.0415(13) 0.0296(11) 0.0344(11) 0.0071(9) 0.0048(10) -0.0003(10) C16 0.0432(13) 0.0315(12) 0.0517(14) 0.0075(10) 0.0012(12) -0.0007(10) C17 0.0547(16) 0.0298(12) 0.0629(16) 0.0033(11) 0.0050(14) -0.0076(11) C18 0.0544(16) 0.0288(12) 0.0687(17) 0.0068(11) 0.0168(14) 0.0041(12) C19 0.0423(14) 0.0418(13) 0.0590(15) 0.0135(12) 0.0105(13) 0.0084(12) C20 0.0443(14) 0.0398(13) 0.0408(12) 0.0069(10) 0.0036(11) 0.0021(11) C21 0.0415(13) 0.0323(11) 0.0362(11) 0.0017(9) 0.0020(10) 0.0021(11) C22 0.0313(11) 0.0249(10) 0.0401(11) 0.0019(9) -0.0058(10) 0.0011(9) C23 0.0374(13) 0.0274(11) 0.0437(12) -0.0031(9) 0.0078(10) 0.0001(10) C24 0.0294(12) 0.0351(12) 0.0464(13) -0.0083(10) 0.0079(10) 0.0020(10) C25 0.0345(14) 0.0402(14) 0.089(2) -0.0075(14) 0.0088(14) -0.0026(11) C26 0.0289(15) 0.0640(19) 0.115(3) -0.0152(18) 0.0018(15) -0.0099(14) C27 0.0279(13) 0.0686(19) 0.089(2) -0.0072(16) 0.0001(14) 0.0095(13) C28 0.0347(13) 0.0520(15) 0.0465(13) -0.0059(11) 0.0050(11) 0.0105(12) C29 0.0327(12) 0.0376(12) 0.0372(11) -0.0085(10) 0.0073(10) 0.0048(10) C30 0.0426(14) 0.0346(12) 0.0403(12) -0.0052(10) -0.0009(11) 0.0034(11) C31 0.0632(17) 0.0340(12) 0.0535(14) 0.0008(12) -0.0047(13) 0.0014(12) C32 0.0713(19) 0.0401(14) 0.0504(15) 0.0052(11) -0.0036(14) 0.0157(15) C33 0.0518(16) 0.0574(16) 0.0498(14) 0.0015(12) -0.0004(13) 0.0233(14) _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 C7 1.218(2) . ? O2 C14 1.215(3) . ? O3 C22 1.425(2) . ? O3 C23 1.437(2) . ? O4 C23 1.408(2) . ? O4 C21 1.419(3) . ? C1 C2 1.392(3) . ? C1 C6 1.395(3) . ? C1 C7 1.497(3) . ? C2 C3 1.388(3) . ? C2 H2 0.9500 . ? C3 C4 1.376(3) . ? C3 H3 0.9500 . ? C4 C5 1.379(4) . ? C4 H4 0.9500 . ? C5 C6 1.374(3) . ? C5 H5 0.9500 . ? C6 H6 0.9500 . ? C7 C22 1.534(3) . ? C8 C9 1.389(3) . ? C8 C13 1.389(3) . ? C8 C14 1.496(3) . ? C9 C10 1.387(3) . ? C9 H9 0.9500 . ? C10 C11 1.382(4) . ? C10 H10 0.9500 . ? C11 C12 1.375(4) . ? C11 H11 0.9500 . ? C12 C13 1.382(3) . ? C12 H12 0.9500 . ? C13 H13 0.9500 . ? C14 C22 1.548(3) . ? C15 C20 1.383(3) . ? C15 C16 1.388(3) . ? C15 C21 1.517(3) . ? C16 C17 1.388(3) . ? C16 H16 0.9500 . ? C17 C18 1.377(4) . ? C17 H17 0.9500 . ? C18 C19 1.377(4) . ? C18 H18 0.9500 . ? C19 C20 1.388(3) . ? C19 H19 0.9500 . ? C20 H20 0.9500 . ? C21 C22 1.587(3) . ? C21 H21 1.0000 . ? C23 C24 1.493(3) . ? C23 H23 1.0000 . ? C24 C25 1.365(3) . ? C24 C29 1.432(3) . ? C25 C26 1.407(4) . ? C25 H25 0.9500 . ? C26 C27 1.355(4) . ? C26 H26 0.9500 . ? C27 C28 1.415(4) . ? C27 H27 0.9500 . ? C28 C33 1.417(3) . ? C28 C29 1.424(3) . ? C29 C30 1.411(3) . ? C30 C31 1.363(3) . ? C30 H30 0.9500 . ? C31 C32 1.399(4) . ? C31 H31 0.9500 . ? C32 C33 1.351(4) . ? C32 H32 0.9500 . ? C33 H33 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 C22 O3 C23 106.65(15) . . ? C23 O4 C21 105.59(16) . . ? C2 C1 C6 119.0(2) . . ? C2 C1 C7 125.24(19) . . ? C6 C1 C7 115.7(2) . . ? C3 C2 C1 120.0(2) . . ? C3 C2 H2 120.0 . . ? C1 C2 H2 120.0 . . ? C4 C3 C2 120.4(2) . . ? C4 C3 H3 119.8 . . ? C2 C3 H3 119.8 . . ? C3 C4 C5 119.7(2) . . ? C3 C4 H4 120.1 . . ? C5 C4 H4 120.1 . . ? C6 C5 C4 120.6(2) . . ? C6 C5 H5 119.7 . . ? C4 C5 H5 119.7 . . ? C5 C6 C1 120.3(2) . . ? C5 C6 H6 119.9 . . ? C1 C6 H6 119.9 . . ? O1 C7 C1 120.6(2) . . ? O1 C7 C22 118.09(19) . . ? C1 C7 C22 121.16(18) . . ? C9 C8 C13 119.2(2) . . ? C9 C8 C14 123.8(2) . . ? C13 C8 C14 117.0(2) . . ? C10 C9 C8 120.0(2) . . ? C10 C9 H9 120.0 . . ? C8 C9 H9 120.0 . . ? C11 C10 C9 120.2(2) . . ? C11 C10 H10 119.9 . . ? C9 C10 H10 119.9 . . ? C12 C11 C10 119.9(2) . . ? C12 C11 H11 120.0 . . ? C10 C11 H11 120.0 . . ? C11 C12 C13 120.2(2) . . ? C11 C12 H12 119.9 . . ? C13 C12 H12 119.9 . . ? C12 C13 C8 120.4(2) . . ? C12 C13 H13 119.8 . . ? C8 C13 H13 119.8 . . ? O2 C14 C8 121.0(2) . . ? O2 C14 C22 118.57(19) . . ? C8 C14 C22 120.38(19) . . ? C20 C15 C16 119.5(2) . . ? C20 C15 C21 118.9(2) . . ? C16 C15 C21 121.6(2) . . ? C15 C16 C17 119.8(2) . . ? C15 C16 H16 120.1 . . ? C17 C16 H16 120.1 . . ? C18 C17 C16 120.3(3) . . ? C18 C17 H17 119.8 . . ? C16 C17 H17 119.8 . . ? C19 C18 C17 120.1(2) . . ? C19 C18 H18 120.0 . . ? C17 C18 H18 120.0 . . ? C18 C19 C20 120.0(2) . . ? C18 C19 H19 120.0 . . ? C20 C19 H19 120.0 . . ? C15 C20 C19 120.3(2) . . ? C15 C20 H20 119.9 . . ? C19 C20 H20 119.9 . . ? O4 C21 C15 110.45(18) . . ? O4 C21 C22 103.14(16) . . ? C15 C21 C22 117.03(18) . . ? O4 C21 H21 108.6 . . ? C15 C21 H21 108.6 . . ? C22 C21 H21 108.6 . . ? O3 C22 C7 110.04(16) . . ? O3 C22 C14 111.45(16) . . ? C7 C22 C14 109.06(17) . . ? O3 C22 C21 103.31(16) . . ? C7 C22 C21 113.04(16) . . ? C14 C22 C21 109.87(17) . . ? O4 C23 O3 104.28(15) . . ? O4 C23 C24 111.94(18) . . ? O3 C23 C24 110.73(17) . . ? O4 C23 H23 109.9 . . ? O3 C23 H23 109.9 . . ? C24 C23 H23 109.9 . . ? C25 C24 C29 120.1(2) . . ? C25 C24 C23 121.2(2) . . ? C29 C24 C23 118.67(19) . . ? C24 C25 C26 121.0(2) . . ? C24 C25 H25 119.5 . . ? C26 C25 H25 119.5 . . ? C27 C26 C25 120.3(3) . . ? C27 C26 H26 119.9 . . ? C25 C26 H26 119.9 . . ? C26 C27 C28 121.1(3) . . ? C26 C27 H27 119.5 . . ? C28 C27 H27 119.5 . . ? C27 C28 C33 122.3(2) . . ? C27 C28 C29 119.1(2) . . ? C33 C28 C29 118.6(2) . . ? C30 C29 C28 118.3(2) . . ? C30 C29 C24 123.3(2) . . ? C28 C29 C24 118.4(2) . . ? C31 C30 C29 120.9(2) . . ? C31 C30 H30 119.6 . . ? C29 C30 H30 119.6 . . ? C30 C31 C32 120.8(2) . . ? C30 C31 H31 119.6 . . ? C32 C31 H31 119.6 . . ? C33 C32 C31 120.0(2) . . ? C33 C32 H32 120.0 . . ? C31 C32 H32 120.0 . . ? C32 C33 C28 121.3(2) . . ? C32 C33 H33 119.3 . . ? C28 C33 H33 119.3 . . ? _diffrn_measured_fraction_theta_max 0.997 _diffrn_reflns_theta_full 25.35 _diffrn_measured_fraction_theta_full 0.997 _refine_diff_density_max 0.128 _refine_diff_density_min -0.145 _refine_diff_density_rms 0.028 _database_code_depnum_ccdc_archive 'CCDC 970252'