#------------------------------------------------------------------------------ #$Date: 2011-09-28 15:24:46 +0100 (Wed, 28 Sep 2011) $ #$Revision: 26848 $ #$URL: svn://www.crystallography.net/cod/cif/2/10/39/2103941.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_2103941 loop_ _publ_author_name 'Turowska-Tyrk, Ilona' _publ_section_title ; Monitoring structural transformations in crystals. 5. A topotactic [2 + 2]-photodimerization reaction ; _journal_issue 5 _journal_name_full 'Acta Crystallographica Section B' _journal_page_first 670 _journal_page_last 675 _journal_volume 59 _journal_year 2003 _chemical_formula_sum 'C19 H17 Cl O' _chemical_formula_weight 296.78 _chemical_name_systematic ; ? ; _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall '-P 2ybc' _symmetry_space_group_name_H-M 'P 1 21/c 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 104.96(3) _cell_angle_gamma 90.00 _cell_formula_units_Z 4 _cell_length_a 17.089(5) _cell_length_b 10.564(3) _cell_length_c 8.812(3) _cell_measurement_reflns_used 653 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 18 _cell_measurement_theta_min 5 _cell_volume 1536.9(8) _computing_cell_refinement 'Kuma KM4CCD software 1998' _computing_data_collection 'Kuma KM4CCD software 1998' _computing_data_reduction 'Kuma KM4CCD software 1998' _computing_molecular_graphics 'ORTEP-3 1997' _computing_publication_material 'SHELXL-97 (Sheldrick, 1997)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1990)' _diffrn_ambient_temperature 293(2) _diffrn_measured_fraction_theta_full 0.981 _diffrn_measured_fraction_theta_max 0.981 _diffrn_measurement_device 'Kuma KM4CCD diffractometer' _diffrn_measurement_method '\w scans' _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.0524 _diffrn_reflns_av_sigmaI/netI 0.0624 _diffrn_reflns_limit_h_max 17 _diffrn_reflns_limit_h_min -21 _diffrn_reflns_limit_k_max 13 _diffrn_reflns_limit_k_min -12 _diffrn_reflns_limit_l_max 10 _diffrn_reflns_limit_l_min -8 _diffrn_reflns_number 7423 _diffrn_reflns_theta_full 26.00 _diffrn_reflns_theta_max 26.00 _diffrn_reflns_theta_min 5.59 _exptl_absorpt_coefficient_mu 0.245 _exptl_absorpt_correction_T_max 0.9642 _exptl_absorpt_correction_T_min 0.8513 _exptl_absorpt_correction_type none _exptl_crystal_colour Colourless _exptl_crystal_density_diffrn 1.283 _exptl_crystal_density_method 'not measured' _exptl_crystal_description Plate _exptl_crystal_F_000 624 _exptl_crystal_size_max 0.68 _exptl_crystal_size_mid 0.42 _exptl_crystal_size_min 0.15 _refine_diff_density_max 0.117 _refine_diff_density_min -0.115 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.173 _refine_ls_hydrogen_treatment mixed _refine_ls_matrix_type full _refine_ls_number_parameters 380 _refine_ls_number_reflns 2955 _refine_ls_number_restraints 248 _refine_ls_restrained_S_all 1.181 _refine_ls_R_factor_all 0.1386 _refine_ls_R_factor_gt 0.0747 _refine_ls_shift/su_max 0.002 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_scheme 'calc w=1/[\s^2^(Fo^2^)+(0.0530P)^2^+0.3360P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_wR_factor_gt 0.1453 _refine_ls_wR_factor_ref 0.1768 _reflns_number_gt 1746 _reflns_number_total 2955 _reflns_threshold_expression >2sigma(I) _[local]_cod_data_source_file bk0133.cif _[local]_cod_data_source_block 32D _[local]_cod_cif_authors_sg_H-M P21/c _cod_depositor_comments ; The following automatic conversions were performed: '_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29. Automatic conversion script Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius ; _cod_database_code 2103941 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' 'x, -y+1/2, z+1/2' '-x, -y, -z' '-x, 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_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol O1M 0.9058(9) 0.2411(15) 0.951(2) 0.095(4) Uani d PDU 0.680(5) A 1 O C1M 0.9137(6) 0.1682(10) 0.8473(10) 0.061(2) Uani d PDU 0.680(5) A 1 C C2M 0.8432(6) 0.1158(12) 0.7228(16) 0.054(2) Uani d PDU 0.680(5) A 1 C H2M 0.8380 0.1699 0.6305 0.065 Uiso calc PR 0.680(5) A 1 H C3M 0.8750(6) -0.0086(8) 0.6821(10) 0.058(2) Uani d PDU 0.680(5) A 1 C H3M1 0.8487 -0.0324 0.5748 0.070 Uiso calc PR 0.680(5) A 1 H H3M2 0.8662 -0.0749 0.7521 0.070 Uiso calc PR 0.680(5) A 1 H C4M 0.9665(6) 0.0134(13) 0.7025(11) 0.060(2) Uani d PDU 0.680(5) A 1 C H4M1 0.9966 -0.0643 0.7342 0.072 Uiso calc PR 0.680(5) A 1 H H4M2 0.9766 0.0426 0.6050 0.072 Uiso calc PR 0.680(5) A 1 H C5M 0.9910(3) 0.1125(4) 0.8281(4) 0.0517(11) Uani d PDU 0.680(5) A 1 C C6M 0.7621(7) 0.121(2) 0.7608(18) 0.074(3) Uani d PDU 0.680(5) A 1 C H6M1 0.7593 0.0534 0.8337 0.089 Uiso calc PR 0.680(5) A 1 H H6M2 0.7576 0.2008 0.8125 0.089 Uiso calc PR 0.680(5) A 1 H C7M 0.6919(9) 0.1088(14) 0.619(2) 0.063(3) Uani d PDU 0.680(5) A 1 C C8M 0.6511(8) -0.0043(14) 0.5816(17) 0.079(3) Uani d PDU 0.680(5) A 1 C H8M 0.6679 -0.0740 0.6463 0.094 Uiso calc PR 0.680(5) A 1 H C9M 0.5868(5) -0.0173(11) 0.4528(12) 0.076(2) Uani d PDU 0.680(5) A 1 C H9M 0.5619 -0.0957 0.4281 0.092 Uiso calc PR 0.680(5) A 1 H C10M 0.5595(7) 0.0852(14) 0.3612(15) 0.078(3) Uani d PDU 0.680(5) A 1 C C11M 0.5994(12) 0.1996(14) 0.393(2) 0.083(3) Uani d PDU 0.680(5) A 1 C H11M 0.5828 0.2685 0.3271 0.099 Uiso calc PR 0.680(5) A 1 H C12M 0.6644(7) 0.2109(13) 0.5237(14) 0.068(3) Uani d PDU 0.680(5) A 1 C H12M 0.6898 0.2890 0.5475 0.082 Uiso calc PR 0.680(5) A 1 H Cl1M 0.4862(5) 0.0661(10) 0.1866(8) 0.1190(14) Uani d PDU 0.680(5) A 1 Cl C13M 1.0626(3) 0.1574(4) 0.9068(5) 0.0574(12) Uani d PDU 0.680(5) A 1 C H13M 1.0604 0.2186 0.9815 0.069 Uiso calc PR 0.680(5) A 1 H C14M 1.1441(3) 0.1268(5) 0.8955(6) 0.0528(12) Uani d PDU 0.680(5) A 1 C C15M 1.2088(5) 0.1895(6) 0.9945(7) 0.0593(19) Uani d PDU 0.680(5) A 1 C H15M 1.1994 0.2465 1.0682 0.071 Uiso calc PR 0.680(5) A 1 H C16M 1.2876(5) 0.1679(7) 0.9844(11) 0.078(2) Uani d PDU 0.680(5) A 1 C H16M 1.3300 0.2117 1.0511 0.094 Uiso calc PR 0.680(5) A 1 H C17M 1.3041(4) 0.0845(10) 0.8793(12) 0.085(2) Uani d PDU 0.680(5) A 1 C H17M 1.3572 0.0700 0.8753 0.101 Uiso calc PR 0.680(5) A 1 H C18M 1.2412(6) 0.0224(12) 0.7797(13) 0.076(2) Uani d PDU 0.680(5) A 1 C H18M 1.2516 -0.0333 0.7055 0.092 Uiso calc PR 0.680(5) A 1 H C19M 1.1618(4) 0.0415(6) 0.7882(7) 0.0676(15) Uani d PDU 0.680(5) A 1 C H19M 1.1200 -0.0033 0.7213 0.081 Uiso calc PR 0.680(5) A 1 H O1D 0.9221(19) 0.244(3) 0.967(4) 0.088(6) Uani d PDU 0.320(5) A 2 O C1D 0.9068(12) 0.1486(19) 0.885(2) 0.057(4) Uani d PDU 0.320(5) A 2 C C2D 0.8397(14) 0.143(3) 0.732(3) 0.055(4) Uani d PDU 0.320(5) A 2 C H2D 0.8414 0.2183 0.6682 0.066 Uiso calc PR 0.320(5) A 2 H C3D 0.8599(13) 0.0235(18) 0.649(2) 0.054(4) Uani d PDU 0.320(5) A 2 C H3D1 0.8487 0.0372 0.5371 0.065 Uiso calc PR 0.320(5) A 2 H H3D2 0.8282 -0.0480 0.6687 0.065 Uiso calc PR 0.320(5) A 2 H C4D 0.9514(13) 0.000(3) 0.721(2) 0.054(4) Uani d PDU 0.320(5) A 2 C H4D1 0.9644 -0.0894 0.7150 0.064 Uiso calc PR 0.320(5) A 2 H H4D2 0.9839 0.0488 0.6671 0.064 Uiso calc PR 0.320(5) A 2 H C5D 0.9654(5) 0.0413(8) 0.8886(9) 0.055(2) Uani d PDU 0.320(5) . 2 C C6D 0.7581(15) 0.135(5) 0.774(4) 0.067(4) Uani d PDU 0.320(5) A 2 C H6D1 0.7587 0.0619 0.8412 0.080 Uiso calc PR 0.320(5) A 2 H H6D2 0.7510 0.2098 0.8320 0.080 Uiso calc PR 0.320(5) A 2 H C7D 0.6889(19) 0.123(3) 0.634(4) 0.060(4) Uani d PDU 0.320(5) A 2 C C8D 0.6652(17) 0.006(3) 0.567(3) 0.077(5) Uani d PDU 0.320(5) A 2 C H8D 0.6885 -0.0661 0.6196 0.092 Uiso calc PR 0.320(5) A 2 H C9D 0.6083(11) -0.007(2) 0.425(3) 0.071(4) Uani d PDU 0.320(5) A 2 C H9D 0.5929 -0.0870 0.3852 0.085 Uiso calc PR 0.320(5) A 2 H C10D 0.5740(15) 0.099(3) 0.342(3) 0.067(4) Uani d PDU 0.320(5) A 2 C C11D 0.595(3) 0.217(3) 0.411(4) 0.078(5) Uani d PDU 0.320(5) A 2 C H11D 0.5698 0.2896 0.3605 0.094 Uiso calc PR 0.320(5) A 2 H C12D 0.6510(16) 0.227(3) 0.553(3) 0.062(4) Uani d PDU 0.320(5) A 2 C H12D 0.6642 0.3073 0.5959 0.074 Uiso calc PR 0.320(5) A 2 H Cl1D 0.4898(12) 0.098(2) 0.187(2) 0.161(7) Uani d PDU 0.320(5) A 2 Cl C13D 1.0483(5) 0.0696(7) 1.0008(8) 0.053(2) Uani d PDU 0.320(5) . 2 C H13D 1.0424 0.1489 1.0546 0.063 Uiso calc PR 0.320(5) A 2 H C14D 1.1221(6) 0.0824(10) 0.9460(11) 0.056(3) Uani d PDU 0.320(5) A 2 C C15D 1.1763(8) 0.1768(15) 1.0140(18) 0.069(4) Uani d PDU 0.320(5) A 2 C H15D 1.1624 0.2329 1.0841 0.083 Uiso calc PR 0.320(5) A 2 H C16D 1.2509(10) 0.1896(13) 0.9800(17) 0.065(4) Uani d PDU 0.320(5) A 2 C H16D 1.2858 0.2544 1.0260 0.078 Uiso calc PR 0.320(5) A 2 H C17D 1.2730(9) 0.107(2) 0.878(2) 0.082(4) Uani d PDU 0.320(5) A 2 C H17D 1.3235 0.1127 0.8570 0.098 Uiso calc PR 0.320(5) A 2 H C18D 1.2186(13) 0.013(2) 0.808(3) 0.072(4) Uani d PDU 0.320(5) A 2 C H18D 1.2319 -0.0413 0.7355 0.086 Uiso calc PR 0.320(5) A 2 H C19D 1.1454(8) 0.0006(12) 0.8427(13) 0.065(3) Uani d PDU 0.320(5) A 2 C H19D 1.1106 -0.0642 0.7962 0.077 Uiso calc PR 0.320(5) A 2 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 O1M 0.078(7) 0.108(5) 0.092(4) 0.010(5) 0.008(4) -0.048(4) C1M 0.074(4) 0.073(4) 0.038(4) 0.011(3) 0.019(3) -0.002(3) C2M 0.065(3) 0.049(7) 0.049(3) 0.006(3) 0.017(3) -0.003(3) C3M 0.069(5) 0.050(5) 0.052(4) 0.012(4) 0.011(3) 0.001(3) C4M 0.070(4) 0.062(4) 0.047(3) -0.001(3) 0.014(3) -0.007(3) C5M 0.063(3) 0.053(3) 0.039(2) 0.004(2) 0.0125(19) 0.0003(19) C6M 0.082(4) 0.078(6) 0.064(4) 0.003(4) 0.021(4) -0.001(4) C7M 0.064(4) 0.062(5) 0.066(5) 0.004(3) 0.023(4) -0.005(4) C8M 0.067(5) 0.074(4) 0.100(4) -0.006(4) 0.031(4) 0.011(3) C9M 0.044(5) 0.094(4) 0.101(5) -0.025(4) 0.035(3) -0.006(4) C10M 0.052(6) 0.117(5) 0.072(4) -0.012(4) 0.027(4) 0.001(4) C11M 0.078(5) 0.090(6) 0.077(6) 0.008(4) 0.014(5) 0.007(4) C12M 0.080(5) 0.066(5) 0.067(5) 0.001(4) 0.034(4) -0.009(3) Cl1M 0.084(2) 0.163(4) 0.098(2) -0.0146(19) 0.0008(16) -0.0166(19) C13M 0.067(3) 0.055(3) 0.049(2) 0.003(2) 0.013(2) -0.004(2) C14M 0.055(3) 0.050(3) 0.051(3) 0.004(2) 0.011(2) 0.009(2) C15M 0.041(5) 0.064(3) 0.073(3) -0.002(4) 0.016(4) 0.005(2) C16M 0.051(5) 0.069(4) 0.111(5) 0.006(4) 0.016(5) 0.012(3) C17M 0.050(5) 0.102(5) 0.100(4) 0.016(4) 0.018(4) 0.029(4) C18M 0.072(6) 0.096(4) 0.065(5) 0.027(4) 0.025(4) 0.015(4) C19M 0.069(4) 0.079(4) 0.053(4) 0.008(3) 0.012(3) 0.003(3) O1D 0.061(9) 0.107(10) 0.103(12) -0.008(7) 0.035(8) -0.058(8) C1D 0.075(6) 0.067(7) 0.033(8) 0.015(6) 0.022(5) 0.008(6) C2D 0.079(7) 0.039(8) 0.051(6) 0.013(6) 0.022(5) -0.009(6) C3D 0.067(8) 0.044(8) 0.043(6) 0.015(6) -0.001(5) 0.025(5) C4D 0.065(8) 0.052(7) 0.047(6) 0.012(7) 0.019(5) 0.001(5) C5D 0.065(5) 0.059(5) 0.038(4) 0.004(4) 0.005(4) 0.003(4) C6D 0.077(7) 0.078(9) 0.054(6) 0.007(6) 0.034(6) 0.002(6) C7D 0.064(7) 0.065(8) 0.058(7) 0.003(6) 0.028(6) -0.009(7) C8D 0.061(9) 0.078(8) 0.099(8) 0.015(7) 0.035(7) 0.016(7) C9D 0.044(8) 0.085(7) 0.099(8) -0.015(7) 0.046(6) -0.012(6) C10D 0.034(7) 0.110(8) 0.069(7) -0.013(6) 0.032(6) -0.005(7) C11D 0.078(8) 0.085(8) 0.073(8) 0.010(7) 0.023(7) 0.003(7) C12D 0.076(8) 0.062(7) 0.062(8) 0.016(6) 0.043(6) -0.009(6) Cl1D 0.102(6) 0.213(15) 0.136(7) -0.029(6) -0.025(5) 0.012(6) C13D 0.072(5) 0.041(4) 0.040(4) 0.001(4) 0.004(4) 0.000(3) C14D 0.058(6) 0.061(6) 0.046(5) -0.006(5) 0.007(4) 0.015(4) C15D 0.043(8) 0.079(7) 0.084(7) -0.008(7) 0.015(7) 0.015(6) C16D 0.030(8) 0.062(7) 0.110(7) -0.001(8) 0.032(9) 0.010(6) C17D 0.045(9) 0.109(9) 0.096(7) 0.013(8) 0.026(8) 0.034(7) C18D 0.072(11) 0.095(7) 0.055(8) 0.027(8) 0.029(7) 0.021(6) C19D 0.071(6) 0.077(7) 0.048(6) 0.015(5) 0.020(5) 0.014(5) 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' Cl Cl 0.1484 0.1585 '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_site_symmetry_3 _geom_angle O1M C1M C5M . 127.0(8) O1M C1M C2M . 123.3(9) C5M C1M C2M . 109.7(7) C3M C2M C6M . 119.7(12) C3M C2M C1M . 102.9(7) C6M C2M C1M . 115.6(9) C2M C3M C4M . 105.0(8) C5M C4M C3M . 105.7(7) C13M C5M C1M . 121.5(5) C13M C5M C4M . 132.6(5) C1M C5M C4M . 105.8(6) C7M C6M C2M . 113.2(11) C12M C7M C8M . 117.7(10) C12M C7M C6M . 121.1(12) C8M C7M C6M . 121.2(12) C9M C8M C7M . 122.1(11) C10M C9M C8M . 119.4(9) C9M C10M C11M . 120.1(9) C9M C10M Cl1M . 119.7(10) C11M C10M Cl1M . 119.3(10) C10M C11M C12M . 119.6(11) C7M C12M C11M . 121.0(11) C5M C13M C14M . 130.7(4) C15M C14M C19M . 117.3(5) C15M C14M C13M . 118.1(5) C19M C14M C13M . 124.6(5) C14M C15M C16M . 120.6(7) C17M C16M C15M . 121.7(7) C16M C17M C18M . 118.7(7) C17M C18M C19M . 120.8(8) C18M C19M C14M . 121.0(7) O1D C1D C5D . 124.4(15) O1D C1D C2D . 123.2(17) C5D C1D C2D . 109.4(14) C1D C2D C6D . 108(2) C1D C2D C3D . 103.9(15) C6D C2D C3D . 113(2) C2D C3D C4D . 105.5(15) C5D C4D C3D . 103.9(12) C4D C5D C1D . 105.4(12) C4D C5D C13D . 125.3(10) C1D C5D C13D . 111.4(10) C4D C5D C13D 3_757 112.2(12) C1D C5D C13D 3_757 111.5(10) C13D C5D C13D 3_757 90.4(6) C7D C6D C2D . 113(2) C12D C7D C8D . 116.5(19) C12D C7D C6D . 122(2) C8D C7D C6D . 121(2) C9D C8D C7D . 122(2) C8D C9D C10D . 120.2(18) C9D C10D C11D . 117.9(18) C9D C10D Cl1D . 125.0(19) C11D C10D Cl1D . 114.8(19) C12D C11D C10D . 120(2) C11D C12D C7D . 122(2) C14D C13D C5D . 122.4(7) C14D C13D C5D 3_757 123.2(7) C5D C13D C5D 3_757 89.6(6) C19D C14D C15D . 117.3(10) C19D C14D C13D . 125.1(9) C15D C14D C13D . 117.3(10) C14D C15D C16D . 121.7(15) C17D C16D C15D . 120.0(14) C16D C17D C18D . 118.6(13) C19D C18D C17D . 121.0(15) C18D C19D C14D . 121.4(13) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance O1M C1M . 1.230(12) C1M C5M . 1.494(9) C1M C2M . 1.510(10) C2M C3M . 1.501(9) C2M C6M . 1.508(10) C3M C4M . 1.544(10) C4M C5M . 1.502(10) C5M C13M . 1.330(5) C6M C7M . 1.500(10) C7M C12M . 1.371(10) C7M C8M . 1.380(10) C8M C9M . 1.368(10) C9M C10M . 1.359(10) C10M C11M . 1.380(12) C10M Cl1M . 1.726(9) C11M C12M . 1.382(10) C13M C14M . 1.458(6) C14M C15M . 1.387(8) C14M C19M . 1.394(7) C15M C16M . 1.391(7) C16M C17M . 1.360(10) C17M C18M . 1.367(11) C18M C19M . 1.393(10) O1D C1D . 1.224(19) C1D C5D . 1.508(16) C1D C2D . 1.528(18) C2D C6D . 1.532(19) C2D C3D . 1.541(18) C3D C4D . 1.549(17) C4D C5D . 1.500(15) C5D C13D . 1.533(10) C5D C13D 3_757 1.580(11) C6D C7D . 1.478(17) C7D C12D . 1.378(18) C7D C8D . 1.382(18) C8D C9D . 1.378(18) C9D C10D . 1.381(17) C10D C11D . 1.392(18) C10D Cl1D . 1.711(17) C11D C12D . 1.372(18) C13D C14D . 1.467(11) C13D C5D 3_757 1.580(11) C14D C19D . 1.386(13) C14D C15D . 1.388(15) C15D C16D . 1.389(12) C16D C17D . 1.377(17) C17D C18D . 1.386(18) C18D C19D . 1.370(15)