#------------------------------------------------------------------------------ #$Date: 2014-07-11 23:16:09 +0100 (Fri, 11 Jul 2014) $ #$Revision: 120081 $ #$URL: svn://www.crystallography.net/cod/cif/4/30/89/4308971.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_4308971 loop_ _publ_author_name 'David B. Cordes' 'Andrew S. Bailey' 'Paula L. Caradoc-Davies' 'Duncan H. Gregory' 'Lyall R. Hanton' 'Kitty Lee' 'Mark D. Spicer' _publ_contact_author 'Hanton, Lyall R.' _publ_contact_author_email lhanton@alkali.otago.ac.nz _publ_section_title ; Flexible Ligands and Structural Diversity: Isomerism in Cd(NO3)2 Coordination Polymers ; _journal_name_full 'Inorganic Chemistry' _journal_page_first 2544 _journal_page_last 2552 _journal_volume 44 _journal_year 2005 _chemical_compound_source 'synthesis as described' _chemical_formula_moiety 'C20 H20 Cd1 N4 O6 S2,C1 H2 Cl2' _chemical_formula_sum 'C21 H22 Cd Cl2 N4 O6 S2' _chemical_formula_weight 673.88 _chemical_name_common Cd(L1)(NO3)2 _chemical_name_systematic ; ? ; _space_group_IT_number 2 _symmetry_cell_setting triclinic _symmetry_Int_Tables_number 2 _symmetry_space_group_name_Hall '-P 1' _symmetry_space_group_name_H-M 'P -1' _atom_sites_solution_hydrogens geom _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _audit_conform_dict_location ftp://ftp.iucr.org/pub/cif_core.dic _audit_conform_dict_name cif_core.dic _audit_conform_dict_version 2.2 _audit_creation_date 2002-10-01T12:45:07-00:00 _audit_creation_method 'WinGX routine CIF_UPDATE' _cell_angle_alpha 102.0760(10) _cell_angle_beta 91.9090(10) _cell_angle_gamma 112.3080(10) _cell_formula_units_Z 2 _cell_length_a 9.7818(2) _cell_length_b 12.0119(2) _cell_length_c 12.6382(4) _cell_measurement_reflns_used 3604 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 27.485 _cell_measurement_theta_min 3.395 _cell_measurement_wavelength 0.71073 _cell_volume 1332.95(6) _computing_cell_refinement 'HKL Scalepack (Otwinowski & Minor 1997)' _computing_data_collection 'Collect (Nonius BV, 1997-2000)' _computing_data_reduction 'HKL Denzo and Scalepack (Otwinowski & Minor 1997)' _computing_molecular_graphics 'Ortep-3 for Windows (Farrugia, 1997)' _computing_publication_material 'WinGX publication routines (Farrugia, 1999)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1997)' _diffrn_ambient_temperature 293(2) _diffrn_detector 'CCD plate' _diffrn_measured_fraction_theta_full 0.986 _diffrn_measured_fraction_theta_max 0.986 _diffrn_measurement_device '95mm CCD camera on \k-goniostat' _diffrn_measurement_device_type KappaCCD _diffrn_measurement_method 'CCD; rotation images; thick slices' _diffrn_orient_matrix_type 'by Nonius Collect from scalepack cell' _diffrn_orient_matrix_UB_11 0.096496 _diffrn_orient_matrix_UB_12 0.015364 _diffrn_orient_matrix_UB_13 -0.0309006 _diffrn_orient_matrix_UB_21 0.0427253 _diffrn_orient_matrix_UB_22 -0.0143229 _diffrn_orient_matrix_UB_23 0.0663948 _diffrn_orient_matrix_UB_31 -0.0355811 _diffrn_orient_matrix_UB_32 -0.0902818 _diffrn_orient_matrix_UB_33 -0.0358819 _diffrn_radiation_monochromator graphite _diffrn_radiation_probe x-ray _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.0173 _diffrn_reflns_av_unetI/netI 0.0484 _diffrn_reflns_limit_h_max 10 _diffrn_reflns_limit_h_min -12 _diffrn_reflns_limit_k_max 15 _diffrn_reflns_limit_k_min -15 _diffrn_reflns_limit_l_max 16 _diffrn_reflns_limit_l_min -13 _diffrn_reflns_number 8103 _diffrn_reflns_theta_full 27.53 _diffrn_reflns_theta_max 27.53 _diffrn_reflns_theta_min 3.41 _diffrn_source 'Enraf Nonius FR590' _exptl_absorpt_coefficient_mu 1.220 _exptl_absorpt_correction_type none _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.679 _exptl_crystal_density_method 'not measured' _exptl_crystal_description prism _exptl_crystal_F_000 676 _exptl_crystal_size_max 0.6 _exptl_crystal_size_mid 0.3 _exptl_crystal_size_min 0.2 _refine_diff_density_max 0.525 _refine_diff_density_min -0.479 _refine_diff_density_rms 0.066 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.024 _refine_ls_hydrogen_treatment constr _refine_ls_matrix_type full _refine_ls_number_parameters 344 _refine_ls_number_reflns 6054 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.024 _refine_ls_R_factor_all 0.0618 _refine_ls_R_factor_gt 0.0384 _refine_ls_shift/su_max 0 _refine_ls_shift/su_mean 0 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.0376P)^2^+0.5661P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0826 _refine_ls_wR_factor_ref 0.0913 _reflns_number_gt 4527 _reflns_number_total 6054 _reflns_threshold_expression >2sigma(I) _[local]_cod_data_source_file ic048473ksi20041101_095811_2.cif _[local]_cod_data_source_block '[Cd(L1)(NO3)2].CH2Cl2' _[local]_cod_chemical_formula_sum_orig 'C21 H22 Cd1 Cl2 N4 O6 S2' _cod_original_cell_volume 1332.95(5) _cod_database_code 4308971 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, -y, -z' 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 Cd1 Cd 0.10007(2) 0.240752(18) 0.279202(19) 0.04494(10) Uani 1 1 d . . . S1 S -0.07561(8) -0.00039(7) 0.24964(7) 0.0468(2) Uani 1 1 d . . . S2 S 0.27836(9) 0.47895(7) 0.29081(7) 0.0500(2) Uani 1 1 d . . . N1 N -0.1022(3) 0.2428(2) 0.3691(2) 0.0511(7) Uani 1 1 d . . . N2 N 0.3167(3) 0.2291(2) 0.2222(2) 0.0480(6) Uani 1 1 d . . . C1 C -0.1306(5) 0.3459(4) 0.3925(3) 0.0670(10) Uani 1 1 d . . . H1 H -0.06 0.4201 0.3792 0.08 Uiso 1 1 calc R . . C2 C -0.2560(6) 0.3484(5) 0.4345(3) 0.0881(14) Uani 1 1 d . . . H2 H -0.2718 0.4232 0.451 0.106 Uiso 1 1 calc R . . C3 C -0.3583(6) 0.2423(6) 0.4523(4) 0.1018(17) Uani 1 1 d . . . H3 H -0.4469 0.2417 0.4811 0.122 Uiso 1 1 calc R . . C4 C -0.3323(5) 0.1360(5) 0.4282(3) 0.0846(13) Uani 1 1 d . . . H4 H -0.4042 0.0608 0.4386 0.101 Uiso 1 1 calc R . . C5 C -0.2007(4) 0.1384(3) 0.3885(3) 0.0545(8) Uani 1 1 d . . . C6 C -0.1622(4) 0.0267(3) 0.3701(3) 0.0584(9) Uani 1 1 d . . . H6A H -0.2546 -0.0474 0.3664 0.07 Uiso 1 1 calc R . . H6B H -0.0946 0.0355 0.4342 0.07 Uiso 1 1 calc R . . C7 C -0.2267(3) -0.0369(3) 0.1432(3) 0.0476(7) Uani 1 1 d . . . H7A H -0.2612 0.0317 0.1541 0.057 Uiso 1 1 calc R . . H7B H -0.1895 -0.0446 0.0713 0.057 Uiso 1 1 calc R . . C8 C -0.3553(3) -0.1553(3) 0.1439(2) 0.0417(7) Uani 1 1 d . . . C9 C -0.4869(4) -0.1557(3) 0.1803(3) 0.0573(9) Uani 1 1 d . . . H9 H -0.4974 -0.0794 0.2051 0.069 Uiso 1 1 calc R . . C10 C -0.6040(3) -0.2661(3) 0.1811(3) 0.0581(9) Uani 1 1 d . . . H10 H -0.6948 -0.2647 0.2042 0.07 Uiso 1 1 calc R . . C11 C -0.5901(3) -0.3779(3) 0.1487(3) 0.0442(7) Uani 1 1 d . . . C12 C -0.4573(3) -0.3767(3) 0.1135(2) 0.0449(7) Uani 1 1 d . . . H12 H -0.4452 -0.4527 0.0914 0.054 Uiso 1 1 calc R . . C13 C -0.3425(3) -0.2678(3) 0.1099(2) 0.0433(7) Uani 1 1 d . . . H13 H -0.2533 -0.2697 0.0837 0.052 Uiso 1 1 calc R . . C14 C 0.2839(3) 0.5021(3) 0.1529(3) 0.0497(8) Uani 1 1 d . . . H14A H 0.2969 0.4319 0.1037 0.06 Uiso 1 1 calc R . . H14B H 0.1881 0.5035 0.1268 0.06 Uiso 1 1 calc R . . C15 C 0.4445(4) 0.4495(3) 0.3087(3) 0.0579(9) Uani 1 1 d . . . H15A H 0.5303 0.5201 0.2955 0.07 Uiso 1 1 calc R . . H15B H 0.4615 0.4466 0.3856 0.07 Uiso 1 1 calc R . . C16 C 0.4414(3) 0.3317(3) 0.2360(3) 0.0494(8) Uani 1 1 d . . . C17 C 0.5651(4) 0.3278(4) 0.1874(3) 0.0679(11) Uani 1 1 d . . . H17 H 0.6526 0.4013 0.1968 0.082 Uiso 1 1 calc R . . C18 C 0.5609(5) 0.2180(5) 0.1258(4) 0.0792(13) Uani 1 1 d . . . H18 H 0.6446 0.2147 0.0914 0.095 Uiso 1 1 calc R . . C19 C 0.4343(5) 0.1133(4) 0.1146(3) 0.0721(11) Uani 1 1 d . . . H19 H 0.4292 0.0356 0.0737 0.086 Uiso 1 1 calc R . . C20 C 0.3152(4) 0.1224(3) 0.1632(3) 0.0590(9) Uani 1 1 d . . . H20 H 0.2271 0.0495 0.1546 0.071 Uiso 1 1 calc R . . N10 N -0.0469(3) 0.2096(2) 0.0511(2) 0.0523(7) Uani 1 1 d . . . O11 O -0.0649(3) 0.2649(2) 0.1411(2) 0.0718(7) Uani 1 1 d . . . O12 O 0.0545(3) 0.1743(3) 0.0499(3) 0.0981(10) Uani 1 1 d . . . O13 O -0.1341(4) 0.1866(3) -0.0296(3) 0.1010(10) Uani 1 1 d . . . N20 N 0.2468(3) 0.2541(3) 0.5035(3) 0.0696(9) Uani 1 1 d . . . O21 O 0.2359(4) 0.3442(3) 0.4782(3) 0.1027(11) Uani 1 1 d . . . O22 O 0.1895(4) 0.1527(3) 0.4370(3) 0.1052(11) Uani 1 1 d . . . O23 O 0.3103(4) 0.2628(3) 0.5918(3) 0.1066(12) Uani 1 1 d . . . Cl1 Cl 0.9118(5) 0.5592(4) 0.1272(3) 0.0809(14) Uani 0.468(11) 1 d P . . Cl2 Cl 1.0596(4) 0.6909(6) 0.3400(3) 0.116(2) Uani 0.468(11) 1 d P . . C21 C 0.9574(6) 0.7019(5) 0.2319(4) 0.1080(17) Uani 1 1 d . . . Cl2A Cl 1.0867(14) 0.7788(18) 0.3433(5) 0.336(6) Uani 0.532(11) 1 d P . . Cl1A Cl 0.9380(10) 0.5602(7) 0.1771(14) 0.240(5) Uani 0.532(11) 1 d P . . 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 Cd1 0.03897(14) 0.03352(14) 0.05316(17) 0.00942(10) 0.01319(10) 0.00427(10) S1 0.0416(4) 0.0336(4) 0.0573(5) 0.0123(4) 0.0044(4) 0.0055(3) S2 0.0526(5) 0.0330(4) 0.0496(5) 0.0076(3) 0.0116(4) 0.0017(3) N1 0.0561(16) 0.0509(16) 0.0445(16) 0.0106(13) 0.0122(13) 0.0190(14) N2 0.0400(14) 0.0442(15) 0.0534(17) 0.0111(12) 0.0089(12) 0.0098(12) C1 0.085(3) 0.069(2) 0.054(2) 0.0051(18) 0.010(2) 0.043(2) C2 0.108(4) 0.119(4) 0.058(3) -0.001(3) 0.007(3) 0.079(4) C3 0.078(3) 0.161(6) 0.073(3) 0.006(3) 0.026(3) 0.065(4) C4 0.062(2) 0.115(4) 0.068(3) 0.023(3) 0.028(2) 0.024(3) C5 0.0519(19) 0.068(2) 0.0355(18) 0.0129(16) 0.0112(15) 0.0145(17) C6 0.058(2) 0.053(2) 0.051(2) 0.0223(16) 0.0097(16) 0.0025(16) C7 0.0475(17) 0.0360(16) 0.050(2) 0.0160(14) 0.0048(14) 0.0039(14) C8 0.0419(16) 0.0353(16) 0.0412(17) 0.0153(13) 0.0023(13) 0.0051(13) C9 0.051(2) 0.0382(18) 0.086(3) 0.0229(17) 0.0129(18) 0.0166(15) C10 0.0395(17) 0.049(2) 0.089(3) 0.0269(18) 0.0185(17) 0.0150(15) C11 0.0386(16) 0.0383(16) 0.0465(19) 0.0146(14) 0.0004(13) 0.0035(13) C12 0.0508(18) 0.0313(15) 0.0411(18) 0.0037(13) 0.0054(14) 0.0063(13) C13 0.0424(16) 0.0419(17) 0.0384(17) 0.0079(13) 0.0068(13) 0.0098(13) C14 0.0421(17) 0.0386(17) 0.055(2) 0.0136(15) 0.0009(14) 0.0004(13) C15 0.0476(19) 0.054(2) 0.051(2) 0.0187(17) -0.0044(15) -0.0045(15) C16 0.0380(16) 0.061(2) 0.0457(19) 0.0226(16) 0.0007(14) 0.0103(15) C17 0.0347(18) 0.097(3) 0.074(3) 0.042(2) 0.0094(17) 0.0160(19) C18 0.068(3) 0.126(4) 0.074(3) 0.039(3) 0.025(2) 0.062(3) C19 0.082(3) 0.097(3) 0.060(3) 0.020(2) 0.014(2) 0.060(3) C20 0.058(2) 0.059(2) 0.062(2) 0.0111(18) 0.0121(17) 0.0268(18) N10 0.0464(16) 0.0503(16) 0.0518(19) 0.0212(14) 0.0109(14) 0.0049(13) O11 0.0732(17) 0.0714(17) 0.0614(18) 0.0108(14) 0.0174(13) 0.0201(14) O12 0.0664(18) 0.101(2) 0.143(3) 0.035(2) 0.0399(19) 0.0442(18) O13 0.111(2) 0.110(3) 0.063(2) 0.0224(18) -0.0179(18) 0.024(2) N20 0.0512(18) 0.077(2) 0.065(2) 0.033(2) 0.0004(16) 0.0011(17) O21 0.110(3) 0.121(3) 0.112(3) 0.079(2) 0.036(2) 0.056(2) O22 0.098(2) 0.107(3) 0.067(2) 0.0059(18) -0.0130(17) 0.004(2) O23 0.128(3) 0.0698(19) 0.084(2) 0.0240(16) -0.053(2) 0.0007(18) Cl1 0.0712(19) 0.070(2) 0.094(3) 0.0038(16) 0.0185(15) 0.0269(15) Cl2 0.100(3) 0.222(5) 0.066(2) 0.050(3) 0.0173(16) 0.098(3) C21 0.117(4) 0.113(4) 0.100(4) 0.015(3) -0.008(3) 0.060(3) Cl2A 0.434(11) 0.613(17) 0.103(4) -0.043(7) -0.045(5) 0.435(12) Cl1A 0.148(5) 0.161(5) 0.468(14) 0.146(7) 0.134(8) 0.077(4) 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 0 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Cd Cd -0.8075 1.2024 '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 0.006 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' S S 0.1246 0.1234 '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' 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 N2 Cd1 N1 167.97(9) . . ? N2 Cd1 O11 115.41(9) . . ? N1 Cd1 O11 76.54(9) . . ? N2 Cd1 O21 89.85(10) . . ? N1 Cd1 O21 80.63(10) . . ? O11 Cd1 O21 141.21(10) . . ? N2 Cd1 S1 101.08(6) . . ? N1 Cd1 S1 76.29(7) . . ? O11 Cd1 S1 91.33(6) . . ? O21 Cd1 S1 113.20(7) . . ? N2 Cd1 S2 76.54(6) . . ? N1 Cd1 S2 106.91(7) . . ? O11 Cd1 S2 86.00(6) . . ? O21 Cd1 S2 71.16(7) . . ? S1 Cd1 S2 175.19(3) . . ? C6 S1 C7 101.08(16) . . ? C6 S1 Cd1 92.97(11) . . ? C7 S1 Cd1 107.36(9) . . ? C15 S2 C14 100.82(16) . . ? C15 S2 Cd1 92.09(11) . . ? C14 S2 Cd1 108.11(10) . . ? C5 N1 C1 118.8(3) . . ? C5 N1 Cd1 120.5(2) . . ? C1 N1 Cd1 120.4(2) . . ? C20 N2 C16 118.7(3) . . ? C20 N2 Cd1 120.3(2) . . ? C16 N2 Cd1 120.5(2) . . ? N1 C1 C2 122.8(4) . . ? C3 C2 C1 118.9(4) . . ? C2 C3 C4 119.3(4) . . ? C3 C4 C5 119.9(4) . . ? N1 C5 C4 120.2(4) . . ? N1 C5 C6 118.2(3) . . ? C4 C5 C6 121.6(3) . . ? C5 C6 S1 115.7(2) . . ? C8 C7 S1 111.7(2) . . ? C9 C8 C13 118.2(3) . . ? C9 C8 C7 121.7(3) . . ? C13 C8 C7 120.0(3) . . ? C8 C9 C10 120.8(3) . . ? C11 C10 C9 120.8(3) . . ? C10 C11 C12 118.1(3) . . ? C10 C11 C14 120.8(3) . 1_445 ? C12 C11 C14 121.1(3) . 1_445 ? C13 C12 C11 121.2(3) . . ? C12 C13 C8 120.8(3) . . ? C11 C14 S2 111.3(2) 1_665 . ? C16 C15 S2 115.3(2) . . ? N2 C16 C17 120.6(3) . . ? N2 C16 C15 118.0(3) . . ? C17 C16 C15 121.4(3) . . ? C18 C17 C16 119.9(4) . . ? C19 C18 C17 118.9(4) . . ? C20 C19 C18 118.8(4) . . ? N2 C20 C19 123.1(4) . . ? O23 N20 O21 121.9(4) . . ? O23 N20 O22 120.3(4) . . ? O21 N20 O22 117.8(4) . . ? N20 O21 Cd1 100.0(3) . . ? O12 N10 O13 122.8(4) . . ? O12 N10 O11 117.0(3) . . ? O13 N10 O11 120.1(3) . . ? N10 O11 Cd1 106.2(2) . . ? Cl1A Cl1 C21 63.1(9) . . ? Cl2A Cl2 C21 72.0(6) . . ? Cl2A Cl2 Cl1A 114.8(6) . . ? C21 Cl2 Cl1A 45.6(3) . . ? Cl1A C21 Cl2A 116.4(5) . . ? Cl1A C21 Cl2 85.4(5) . . ? Cl2A C21 Cl2 33.2(5) . . ? Cl1A C21 Cl1 21.4(6) . . ? Cl2A C21 Cl1 135.2(5) . . ? Cl2 C21 Cl1 106.3(4) . . ? Cl2 Cl2A C21 74.8(9) . . ? Cl1 Cl1A C21 95.5(10) . . ? Cl1 Cl1A Cl2 142.6(11) . . ? C21 Cl1A Cl2 49.0(4) . . ? 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 Cd1 N2 2.305(2) . ? Cd1 N1 2.320(3) . ? Cd1 O11 2.473(3) . ? Cd1 O21 2.618(4) . ? Cd1 S1 2.6848(7) . ? Cd1 S2 2.6961(8) . ? S1 C6 1.797(3) . ? S1 C7 1.820(3) . ? S2 C15 1.807(4) . ? S2 C14 1.821(3) . ? N1 C5 1.337(4) . ? N1 C1 1.346(4) . ? N2 C20 1.335(4) . ? N2 C16 1.338(4) . ? C1 C2 1.361(6) . ? C2 C3 1.358(7) . ? C3 C4 1.369(7) . ? C4 C5 1.389(5) . ? C5 C6 1.502(5) . ? C7 C8 1.501(4) . ? C8 C9 1.380(4) . ? C8 C13 1.383(4) . ? C9 C10 1.387(4) . ? C10 C11 1.378(4) . ? C11 C12 1.384(4) . ? C11 C14 1.513(4) 1_445 ? C12 C13 1.374(4) . ? C14 C11 1.513(4) 1_665 ? C15 C16 1.506(5) . ? C16 C17 1.387(5) . ? C17 C18 1.369(6) . ? C18 C19 1.367(6) . ? C19 C20 1.364(5) . ? N10 O11 1.246(4) . ? N10 O12 1.218(4) . ? N10 O13 1.220(4) . ? N20 O21 1.231(4) . ? N20 O22 1.235(4) . ? N20 O23 1.223(4) . ? Cl1 Cl1A 0.669(18) . ? Cl1 C21 1.823(7) . ? Cl2 Cl2A 0.978(17) . ? Cl2 C21 1.723(7) . ? Cl2 Cl1A 2.277(15) . ? C21 Cl1A 1.633(9) . ? C21 Cl2A 1.698(10) . ? _journal_paper_doi 10.1021/ic048473k