# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry # This journal is © The Royal Society of Chemistry 2013 ####################################################################### # # 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_121218b #TrackingRef '121218B.cif' _audit_creation_method SHELXL-97 _chemical_name_systematic ; (2,3-Dihydro-1H-benzo[g]pyrimido[1,2-a][1,8]naphthyridin-5-yl)(phenyl)methanone ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety ? _chemical_formula_sum 'C22 H17 N3 O' _chemical_formula_weight 339.39 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)/n 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' _cell_length_a 12.3869(16) _cell_length_b 5.4576(7) _cell_length_c 24.843(3) _cell_angle_alpha 90.00 _cell_angle_beta 101.217(2) _cell_angle_gamma 90.00 _cell_volume 1647.4(4) _cell_formula_units_Z 4 _cell_measurement_temperature 298(2) _cell_measurement_reflns_used 1628 _cell_measurement_theta_min 2.73 _cell_measurement_theta_max 26.91 _exptl_crystal_description BLOCK _exptl_crystal_colour YELLOW _exptl_crystal_size_max 0.27 _exptl_crystal_size_mid 0.20 _exptl_crystal_size_min 0.17 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.368 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 712 _exptl_absorpt_coefficient_mu 0.086 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_correction_T_min 0.9771 _exptl_absorpt_correction_T_max 0.9855 _exptl_absorpt_process_details sadabs _exptl_special_details ; ? ; _diffrn_ambient_temperature 298(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 'CCD area detector' _diffrn_measurement_method 'phi and omega scans' _diffrn_detector_area_resol_mean ? _diffrn_standards_number ? _diffrn_standards_interval_count ? _diffrn_standards_interval_time ? _diffrn_standards_decay_% ? _diffrn_reflns_number 8916 _diffrn_reflns_av_R_equivalents 0.0321 _diffrn_reflns_av_sigmaI/netI 0.0366 _diffrn_reflns_limit_h_min -14 _diffrn_reflns_limit_h_max 14 _diffrn_reflns_limit_k_min -5 _diffrn_reflns_limit_k_max 6 _diffrn_reflns_limit_l_min -25 _diffrn_reflns_limit_l_max 29 _diffrn_reflns_theta_min 1.72 _diffrn_reflns_theta_max 24.99 _reflns_number_total 2901 _reflns_number_gt 1992 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'Bruker apex II' _computing_cell_refinement 'Bruker apex II' _computing_data_reduction 'Bruker SAINT' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1990)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_molecular_graphics 'Bruker SHELXTL' _computing_publication_material 'Bruker SHELXTL' _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^)+(0.0629P)^2^+0.2149P] 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 SHELXL _refine_ls_extinction_coef 0.0052(16) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_number_reflns 2901 _refine_ls_number_parameters 236 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.0699 _refine_ls_R_factor_gt 0.0436 _refine_ls_wR_factor_ref 0.1325 _refine_ls_wR_factor_gt 0.1190 _refine_ls_goodness_of_fit_ref 1.062 _refine_ls_restrained_S_all 1.062 _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 N1 N 0.68996(12) 0.5086(3) 0.05552(7) 0.0423(4) Uani 1 1 d . . . N2 N 0.75147(12) 0.2080(3) 0.11982(7) 0.0403(4) Uani 1 1 d . . . N3 N 0.81375(13) -0.1238(3) 0.18091(8) 0.0508(5) Uani 1 1 d . . . O1 O 1.08497(12) -0.1916(3) 0.13917(6) 0.0551(5) Uani 1 1 d . . . C1 C 0.83451(17) 0.9394(4) -0.02196(8) 0.0457(6) Uani 1 1 d . . . H1 H 0.9051 0.9771 -0.0270 0.055 Uiso 1 1 calc R . . C2 C 0.74754(18) 1.0705(4) -0.04904(9) 0.0493(6) Uani 1 1 d . . . H2 H 0.7587 1.1985 -0.0721 0.059 Uiso 1 1 calc R . . C3 C 0.64096(18) 1.0122(4) -0.04213(9) 0.0516(6) Uani 1 1 d . . . H3 H 0.5817 1.1033 -0.0605 0.062 Uiso 1 1 calc R . . C4 C 0.62274(17) 0.8242(4) -0.00896(9) 0.0484(6) Uani 1 1 d . . . H4 H 0.5512 0.7851 -0.0058 0.058 Uiso 1 1 calc R . . C5 C 0.71145(15) 0.6889(4) 0.02058(8) 0.0398(5) Uani 1 1 d . . . C6 C 0.81936(16) 0.7468(4) 0.01372(8) 0.0393(5) Uani 1 1 d . . . C7 C 0.90614(16) 0.6075(4) 0.04406(8) 0.0412(5) Uani 1 1 d . . . H7 H 0.9781 0.6389 0.0404 0.049 Uiso 1 1 calc R . . C8 C 0.88576(15) 0.4264(4) 0.07892(8) 0.0371(5) Uani 1 1 d . . . C9 C 0.77402(15) 0.3871(4) 0.08349(8) 0.0367(5) Uani 1 1 d . . . C10 C 0.63610(15) 0.1666(4) 0.12400(9) 0.0493(6) Uani 1 1 d . . . H10A H 0.6019 0.0553 0.0953 0.059 Uiso 1 1 calc R . . H10B H 0.5962 0.3205 0.1191 0.059 Uiso 1 1 calc R . . C11 C 0.63022(17) 0.0604(4) 0.17882(9) 0.0539(6) Uani 1 1 d . . . H11A H 0.5547 0.0176 0.1799 0.065 Uiso 1 1 calc R . . H11B H 0.6549 0.1809 0.2073 0.065 Uiso 1 1 calc R . . C12 C 0.70128(17) -0.1632(5) 0.18909(11) 0.0636(7) Uani 1 1 d . . . H12A H 0.7039 -0.2179 0.2265 0.076 Uiso 1 1 calc R . . H12B H 0.6679 -0.2929 0.1647 0.076 Uiso 1 1 calc R . . C13 C 0.83183(15) 0.0518(4) 0.14972(8) 0.0389(5) Uani 1 1 d . . . C14 C 0.94564(15) 0.0938(4) 0.14269(8) 0.0383(5) Uani 1 1 d . . . C15 C 0.96944(15) 0.2720(4) 0.10954(9) 0.0419(5) Uani 1 1 d . . . H15 H 1.0423 0.2958 0.1064 0.050 Uiso 1 1 calc R . . C16 C 1.03546(15) -0.0788(4) 0.16943(9) 0.0394(5) Uani 1 1 d . . . C17 C 1.07053(14) -0.0955(3) 0.22979(8) 0.0368(5) Uani 1 1 d . . . C18 C 1.04182(16) 0.0807(4) 0.26432(9) 0.0460(6) Uani 1 1 d . . . H18 H 0.9943 0.2070 0.2502 0.055 Uiso 1 1 calc R . . C19 C 1.08389(19) 0.0685(4) 0.31995(9) 0.0564(6) Uani 1 1 d . . . H19 H 1.0652 0.1885 0.3431 0.068 Uiso 1 1 calc R . . C20 C 1.15296(18) -0.1188(4) 0.34145(10) 0.0545(6) Uani 1 1 d . . . H20 H 1.1810 -0.1256 0.3790 0.065 Uiso 1 1 calc R . . C21 C 1.18056(17) -0.2970(4) 0.30701(10) 0.0528(6) Uani 1 1 d . . . H21 H 1.2263 -0.4259 0.3214 0.063 Uiso 1 1 calc R . . C22 C 1.14066(16) -0.2842(4) 0.25155(9) 0.0464(6) Uani 1 1 d . . . H22 H 1.1607 -0.4026 0.2284 0.056 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 N1 0.0336(9) 0.0543(11) 0.0386(10) 0.0054(9) 0.0065(8) 0.0011(8) N2 0.0283(8) 0.0504(10) 0.0423(10) 0.0060(8) 0.0070(7) -0.0015(7) N3 0.0357(9) 0.0565(12) 0.0593(13) 0.0151(10) 0.0073(9) -0.0033(8) O1 0.0474(9) 0.0665(10) 0.0513(10) -0.0082(8) 0.0095(7) 0.0115(8) C1 0.0453(12) 0.0508(13) 0.0405(13) 0.0002(11) 0.0076(10) -0.0087(10) C2 0.0584(14) 0.0478(13) 0.0397(13) 0.0056(10) 0.0045(11) -0.0036(11) C3 0.0501(13) 0.0593(14) 0.0440(13) 0.0083(12) 0.0054(10) 0.0081(11) C4 0.0395(12) 0.0638(15) 0.0418(13) 0.0060(11) 0.0076(10) 0.0050(11) C5 0.0388(11) 0.0473(12) 0.0332(11) -0.0035(10) 0.0064(9) -0.0007(9) C6 0.0389(11) 0.0457(12) 0.0326(11) -0.0045(9) 0.0054(9) -0.0049(9) C7 0.0322(10) 0.0502(13) 0.0418(12) -0.0019(10) 0.0083(9) -0.0063(9) C8 0.0316(10) 0.0430(12) 0.0363(12) -0.0035(9) 0.0052(9) -0.0032(9) C9 0.0332(10) 0.0428(11) 0.0338(11) -0.0030(9) 0.0059(9) -0.0028(9) C10 0.0309(11) 0.0604(14) 0.0569(15) 0.0097(12) 0.0095(10) -0.0021(10) C11 0.0382(12) 0.0703(16) 0.0545(15) 0.0088(12) 0.0125(10) -0.0064(11) C12 0.0407(12) 0.0743(17) 0.0758(19) 0.0279(14) 0.0111(12) -0.0041(12) C13 0.0319(10) 0.0456(12) 0.0383(12) -0.0007(10) 0.0040(9) -0.0019(9) C14 0.0306(10) 0.0451(12) 0.0376(12) -0.0039(9) 0.0029(9) -0.0020(9) C15 0.0276(10) 0.0514(13) 0.0466(13) -0.0037(10) 0.0075(9) -0.0038(9) C16 0.0293(10) 0.0410(12) 0.0477(13) -0.0035(10) 0.0069(9) -0.0036(9) C17 0.0287(10) 0.0380(11) 0.0431(12) 0.0023(9) 0.0053(9) -0.0007(8) C18 0.0441(12) 0.0449(13) 0.0471(14) -0.0001(10) 0.0042(10) 0.0085(10) C19 0.0662(15) 0.0549(15) 0.0458(15) -0.0063(12) 0.0050(12) 0.0085(12) C20 0.0510(13) 0.0623(15) 0.0463(14) 0.0090(12) -0.0001(11) -0.0015(12) C21 0.0437(12) 0.0524(14) 0.0599(16) 0.0147(12) 0.0045(11) 0.0086(11) C22 0.0420(12) 0.0441(12) 0.0537(14) 0.0021(11) 0.0103(10) 0.0060(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 N1 C9 1.314(2) . ? N1 C5 1.372(3) . ? N2 C9 1.395(2) . ? N2 C13 1.408(2) . ? N2 C10 1.470(2) . ? N3 C13 1.279(2) . ? N3 C12 1.462(3) . ? O1 C16 1.225(2) . ? C1 C2 1.358(3) . ? C1 C6 1.411(3) . ? C1 H1 0.9300 . ? C2 C3 1.401(3) . ? C2 H2 0.9300 . ? C3 C4 1.362(3) . ? C3 H3 0.9300 . ? C4 C5 1.406(3) . ? C4 H4 0.9300 . ? C5 C6 1.416(3) . ? C6 C7 1.409(3) . ? C7 C8 1.370(3) . ? C7 H7 0.9300 . ? C8 C9 1.427(3) . ? C8 C15 1.434(3) . ? C10 C11 1.495(3) . ? C10 H10A 0.9700 . ? C10 H10B 0.9700 . ? C11 C12 1.497(3) . ? C11 H11A 0.9700 . ? C11 H11B 0.9700 . ? C12 H12A 0.9700 . ? C12 H12B 0.9700 . ? C13 C14 1.472(3) . ? C14 C15 1.344(3) . ? C14 C16 1.509(3) . ? C15 H15 0.9300 . ? C16 C17 1.481(3) . ? C17 C18 1.380(3) . ? C17 C22 1.388(3) . ? C18 C19 1.380(3) . ? C18 H18 0.9300 . ? C19 C20 1.373(3) . ? C19 H19 0.9300 . ? C20 C21 1.382(3) . ? C20 H20 0.9300 . ? C21 C22 1.372(3) . ? C21 H21 0.9300 . ? C22 H22 0.9300 . ? 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 C9 N1 C5 117.73(16) . . ? C9 N2 C13 123.76(16) . . ? C9 N2 C10 118.24(16) . . ? C13 N2 C10 117.82(16) . . ? C13 N3 C12 118.56(18) . . ? C2 C1 C6 121.0(2) . . ? C2 C1 H1 119.5 . . ? C6 C1 H1 119.5 . . ? C1 C2 C3 119.7(2) . . ? C1 C2 H2 120.2 . . ? C3 C2 H2 120.2 . . ? C4 C3 C2 121.1(2) . . ? C4 C3 H3 119.5 . . ? C2 C3 H3 119.5 . . ? C3 C4 C5 120.5(2) . . ? C3 C4 H4 119.8 . . ? C5 C4 H4 119.8 . . ? N1 C5 C4 118.61(18) . . ? N1 C5 C6 122.69(18) . . ? C4 C5 C6 118.69(19) . . ? C1 C6 C7 123.84(18) . . ? C1 C6 C5 119.08(19) . . ? C7 C6 C5 117.07(18) . . ? C8 C7 C6 120.81(18) . . ? C8 C7 H7 119.6 . . ? C6 C7 H7 119.6 . . ? C7 C8 C9 117.38(18) . . ? C7 C8 C15 123.81(18) . . ? C9 C8 C15 118.79(18) . . ? N1 C9 N2 117.26(16) . . ? N1 C9 C8 124.29(18) . . ? N2 C9 C8 118.45(17) . . ? N2 C10 C11 110.14(17) . . ? N2 C10 H10A 109.6 . . ? C11 C10 H10A 109.6 . . ? N2 C10 H10B 109.6 . . ? C11 C10 H10B 109.6 . . ? H10A C10 H10B 108.1 . . ? C10 C11 C12 109.88(19) . . ? C10 C11 H11A 109.7 . . ? C12 C11 H11A 109.7 . . ? C10 C11 H11B 109.7 . . ? C12 C11 H11B 109.7 . . ? H11A C11 H11B 108.2 . . ? N3 C12 C11 113.62(19) . . ? N3 C12 H12A 108.8 . . ? C11 C12 H12A 108.8 . . ? N3 C12 H12B 108.8 . . ? C11 C12 H12B 108.8 . . ? H12A C12 H12B 107.7 . . ? N3 C13 N2 125.75(17) . . ? N3 C13 C14 118.23(18) . . ? N2 C13 C14 116.00(17) . . ? C15 C14 C13 120.98(18) . . ? C15 C14 C16 119.37(17) . . ? C13 C14 C16 119.45(17) . . ? C14 C15 C8 121.90(18) . . ? C14 C15 H15 119.1 . . ? C8 C15 H15 119.1 . . ? O1 C16 C17 120.50(18) . . ? O1 C16 C14 117.25(19) . . ? C17 C16 C14 122.00(17) . . ? C18 C17 C22 119.49(19) . . ? C18 C17 C16 121.76(18) . . ? C22 C17 C16 118.58(18) . . ? C19 C18 C17 119.7(2) . . ? C19 C18 H18 120.1 . . ? C17 C18 H18 120.1 . . ? C20 C19 C18 120.7(2) . . ? C20 C19 H19 119.6 . . ? C18 C19 H19 119.6 . . ? C19 C20 C21 119.6(2) . . ? C19 C20 H20 120.2 . . ? C21 C20 H20 120.2 . . ? C22 C21 C20 120.1(2) . . ? C22 C21 H21 119.9 . . ? C20 C21 H21 119.9 . . ? C21 C22 C17 120.3(2) . . ? C21 C22 H22 119.8 . . ? C17 C22 H22 119.8 . . ? 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 C1 C2 C3 -0.9(3) . . . . ? C1 C2 C3 C4 -0.6(3) . . . . ? C2 C3 C4 C5 2.0(3) . . . . ? C9 N1 C5 C4 -178.82(18) . . . . ? C9 N1 C5 C6 0.2(3) . . . . ? C3 C4 C5 N1 177.0(2) . . . . ? C3 C4 C5 C6 -2.1(3) . . . . ? C2 C1 C6 C7 -178.4(2) . . . . ? C2 C1 C6 C5 0.8(3) . . . . ? N1 C5 C6 C1 -178.31(19) . . . . ? C4 C5 C6 C1 0.7(3) . . . . ? N1 C5 C6 C7 0.9(3) . . . . ? C4 C5 C6 C7 179.91(18) . . . . ? C1 C6 C7 C8 178.53(19) . . . . ? C5 C6 C7 C8 -0.7(3) . . . . ? C6 C7 C8 C9 -0.6(3) . . . . ? C6 C7 C8 C15 177.71(18) . . . . ? C5 N1 C9 N2 178.57(17) . . . . ? C5 N1 C9 C8 -1.6(3) . . . . ? C13 N2 C9 N1 175.48(17) . . . . ? C10 N2 C9 N1 0.4(3) . . . . ? C13 N2 C9 C8 -4.4(3) . . . . ? C10 N2 C9 C8 -179.44(18) . . . . ? C7 C8 C9 N1 1.8(3) . . . . ? C15 C8 C9 N1 -176.57(19) . . . . ? C7 C8 C9 N2 -178.35(18) . . . . ? C15 C8 C9 N2 3.3(3) . . . . ? C9 N2 C10 C11 -154.99(19) . . . . ? C13 N2 C10 C11 29.7(3) . . . . ? N2 C10 C11 C12 -53.4(2) . . . . ? C13 N3 C12 C11 -23.3(3) . . . . ? C10 C11 C12 N3 51.5(3) . . . . ? C12 N3 C13 N2 -3.1(3) . . . . ? C12 N3 C13 C14 178.6(2) . . . . ? C9 N2 C13 N3 -175.6(2) . . . . ? C10 N2 C13 N3 -0.6(3) . . . . ? C9 N2 C13 C14 2.7(3) . . . . ? C10 N2 C13 C14 177.75(17) . . . . ? N3 C13 C14 C15 178.5(2) . . . . ? N2 C13 C14 C15 0.1(3) . . . . ? N3 C13 C14 C16 3.6(3) . . . . ? N2 C13 C14 C16 -174.85(17) . . . . ? C13 C14 C15 C8 -1.0(3) . . . . ? C16 C14 C15 C8 173.94(17) . . . . ? C7 C8 C15 C14 -179.0(2) . . . . ? C9 C8 C15 C14 -0.7(3) . . . . ? C15 C14 C16 O1 -56.0(3) . . . . ? C13 C14 C16 O1 119.0(2) . . . . ? C15 C14 C16 C17 118.2(2) . . . . ? C13 C14 C16 C17 -66.8(2) . . . . ? O1 C16 C17 C18 159.20(19) . . . . ? C14 C16 C17 C18 -14.9(3) . . . . ? O1 C16 C17 C22 -16.0(3) . . . . ? C14 C16 C17 C22 169.89(17) . . . . ? C22 C17 C18 C19 0.6(3) . . . . ? C16 C17 C18 C19 -174.61(19) . . . . ? C17 C18 C19 C20 -0.8(3) . . . . ? C18 C19 C20 C21 -0.1(3) . . . . ? C19 C20 C21 C22 1.2(3) . . . . ? C20 C21 C22 C17 -1.4(3) . . . . ? C18 C17 C22 C21 0.5(3) . . . . ? C16 C17 C22 C21 175.86(19) . . . . ? _diffrn_measured_fraction_theta_max 0.999 _diffrn_reflns_theta_full 24.99 _diffrn_measured_fraction_theta_full 0.999 _refine_diff_density_max 0.160 _refine_diff_density_min -0.157 _refine_diff_density_rms 0.041 _database_code_depnum_ccdc_archive 'CCDC 932894'