#------------------------------------------------------------------------------ #$Date: 2011-01-02 20:00:31 +0000 (Sun, 02 Jan 2011) $ #$Revision: 5310 $ #$URL: svn://www.crystallography.net/cod/cif/2/2203649.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_2203649 loop_ _publ_author_name 'Yu-Ling Wang' 'Wen-Hua Bi' 'Xing Li' 'Rong Cao' _publ_section_title ; Tetrakis[1-tert-butyl-1H-imidazole-2(3H)-thione-\kS]palladium(II) dichloride dichloromethane disolvate ; _journal_issue 5 _journal_name_full 'Acta Crystallographica, Section E' _journal_page_first m699 _journal_page_last m700 _journal_volume 60 _journal_year 2004 _chemical_formula_iupac '[Pd (C7 H12 N2)4] l2, 2C H2 Cl2' _chemical_formula_moiety 'C28 H48 N8 Pd S4 2+, 2C H2 Cl2, 2Cl -' _chemical_formula_sum 'C30 H52 Cl6 N8 Pd S4' _chemical_formula_weight 972.14 _chemical_name_systematic ; Tetrakis[1-tert-butyl-1H-imidazole-2(3H)-thione-\kS]palladium(II) dichloride dichloromethane disolvate ; _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 111.4930(10) _cell_angle_gamma 90.00 _cell_formula_units_Z 2 _cell_length_a 9.3724(2) _cell_length_b 21.9527(4) _cell_length_c 11.4474(2) _cell_measurement_reflns_used 7773 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 25.16 _cell_measurement_theta_min 1.86 _cell_volume 2191.51(7) _computing_cell_refinement 'SAINT (Siemens, 1996)' _computing_data_collection 'SMART (Siemens, 1996)' _computing_data_reduction SAINT _computing_molecular_graphics SHELXTL _computing_publication_material SHELXTL _computing_structure_refinement SHELXTL _computing_structure_solution 'SHELXTL (Sheldrick, 1997)' _diffrn_ambient_temperature 293(2) _diffrn_measured_fraction_theta_full 0.998 _diffrn_measured_fraction_theta_max 0.998 _diffrn_measurement_device_type 'Siemens SMART CCD area-detector' _diffrn_measurement_method '\f and \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 0.0373 _diffrn_reflns_av_sigmaI/netI 0.0311 _diffrn_reflns_limit_h_max 11 _diffrn_reflns_limit_h_min -10 _diffrn_reflns_limit_k_max 26 _diffrn_reflns_limit_k_min -16 _diffrn_reflns_limit_l_max 13 _diffrn_reflns_limit_l_min -13 _diffrn_reflns_number 11352 _diffrn_reflns_theta_full 25.16 _diffrn_reflns_theta_max 25.16 _diffrn_reflns_theta_min 1.86 _diffrn_standards_decay_% 0 _diffrn_standards_interval_count none _diffrn_standards_interval_time none _diffrn_standards_number 0 _exptl_absorpt_coefficient_mu 1.012 _exptl_absorpt_correction_T_max 0.904 _exptl_absorpt_correction_T_min 0.685 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_process_details '(SADABS; Sheldrick, 1996)' _exptl_crystal_colour red _exptl_crystal_density_diffrn 1.473 _exptl_crystal_density_meas 'not measured' _exptl_crystal_density_method 'not measured' _exptl_crystal_description block _exptl_crystal_F_000 1000 _exptl_crystal_size_max 0.48 _exptl_crystal_size_mid 0.32 _exptl_crystal_size_min 0.10 _refine_diff_density_max 0.565 _refine_diff_density_min -0.966 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.000 _refine_ls_hydrogen_treatment constr _refine_ls_matrix_type full _refine_ls_number_parameters 223 _refine_ls_number_reflns 3927 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.000 _refine_ls_R_factor_all 0.0542 _refine_ls_R_factor_gt 0.0437 _refine_ls_shift/su_max 0.001 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.0401P)^2^+4.8056P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0991 _refine_ls_wR_factor_ref 0.1064 _reflns_number_gt 3378 _reflns_number_total 3927 _reflns_threshold_expression 'I > 2\s(I)' _[local]_cod_data_source_file ng6026.cif _[local]_cod_cif_authors_sg_H-M 'P 21/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 2203649 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_type_symbol Pd1 0.5000 0.5000 0.5000 0.03574(13) Uani d S 1 Pd S1 0.75992(12) 0.51230(5) 0.54211(11) 0.0530(3) Uani d . 1 S S2 0.51971(12) 0.39949(4) 0.56852(8) 0.0422(2) Uani d . 1 S Cl1 0.1490(2) 0.27944(9) 0.35042(17) 0.1009(5) Uani d . 1 Cl Cl2 0.0167(4) 0.34124(18) 0.1183(3) 0.2114(16) Uani d . 1 Cl Cl3 0.50597(14) 0.40002(5) 0.21970(11) 0.0611(3) Uani d . 1 Cl N1 0.9638(3) 0.41683(15) 0.6436(3) 0.0463(8) Uani d . 1 N N2 0.8010(4) 0.40199(15) 0.4560(3) 0.0502(8) Uani d . 1 N N3 0.5672(3) 0.36214(14) 0.8103(3) 0.0381(7) Uani d . 1 N N4 0.5508(4) 0.45935(14) 0.7834(3) 0.0418(7) Uani d . 1 N C1 0.8432(4) 0.44165(17) 0.5511(4) 0.0428(9) Uani d . 1 C C2 0.9940(5) 0.3612(2) 0.6013(5) 0.0629(13) Uani d . 1 C C3 0.8931(5) 0.3523(2) 0.4869(5) 0.0610(12) Uani d . 1 C C4 1.0509(5) 0.4435(2) 0.7707(4) 0.0523(10) Uani d . 1 C C5 1.1725(6) 0.3981(3) 0.8454(5) 0.0817(16) Uani d . 1 C C6 1.1274(6) 0.5018(2) 0.7535(5) 0.0683(13) Uani d . 1 C C7 0.9389(6) 0.4537(3) 0.8363(4) 0.0713(14) Uani d . 1 C C8 0.5449(4) 0.40710(15) 0.7234(3) 0.0340(7) Uani d . 1 C C9 0.5893(5) 0.3892(2) 0.9249(4) 0.0527(11) Uani d . 1 C C10 0.5797(5) 0.4492(2) 0.9070(4) 0.0532(11) Uani d . 1 C C11 0.5709(5) 0.29471(17) 0.7876(4) 0.0441(9) Uani d . 1 C C12 0.5845(6) 0.2613(2) 0.9077(4) 0.0656(13) Uani d . 1 C C13 0.7092(5) 0.2807(2) 0.7533(4) 0.0565(11) Uani d . 1 C C14 0.4212(5) 0.27542(19) 0.6840(4) 0.0596(12) Uani d . 1 C C15 0.1554(7) 0.3434(3) 0.2638(7) 0.103(2) Uani d . 1 C H2A 0.7264 0.4072 0.3856 0.060 Uiso calc R 1 H H2B 1.0721 0.3346 0.6458 0.075 Uiso calc R 1 H H3A 0.8865 0.3183 0.4368 0.073 Uiso calc R 1 H H4A 0.5381 0.4947 0.7488 0.050 Uiso calc R 1 H H5A 1.1238 0.3614 0.8573 0.123 Uiso calc R 1 H H5B 1.2320 0.4152 0.9256 0.123 Uiso calc R 1 H H5C 1.2384 0.3889 0.8003 0.123 Uiso calc R 1 H H6A 1.0505 0.5306 0.7069 0.102 Uiso calc R 1 H H6B 1.1937 0.4932 0.7085 0.102 Uiso calc R 1 H H6C 1.1865 0.5186 0.8342 0.102 Uiso calc R 1 H H7A 0.8633 0.4831 0.7903 0.107 Uiso calc R 1 H H7B 0.9931 0.4685 0.9198 0.107 Uiso calc R 1 H H7C 0.8892 0.4159 0.8404 0.107 Uiso calc R 1 H H9A 0.6076 0.3692 1.0006 0.063 Uiso calc R 1 H H10A 0.5906 0.4788 0.9679 0.064 Uiso calc R 1 H H12A 0.6785 0.2727 0.9736 0.098 Uiso calc R 1 H H12B 0.5843 0.2181 0.8939 0.098 Uiso calc R 1 H H12C 0.4994 0.2719 0.9312 0.098 Uiso calc R 1 H H13A 0.7000 0.3020 0.6776 0.085 Uiso calc R 1 H H13B 0.7142 0.2377 0.7405 0.085 Uiso calc R 1 H H13C 0.8008 0.2937 0.8201 0.085 Uiso calc R 1 H H14A 0.4108 0.2962 0.6076 0.089 Uiso calc R 1 H H14B 0.3363 0.2857 0.7082 0.089 Uiso calc R 1 H H14C 0.4224 0.2322 0.6712 0.089 Uiso calc R 1 H H15A 0.1421 0.3796 0.3074 0.123 Uiso calc R 1 H H15B 0.2550 0.3458 0.2564 0.123 Uiso calc 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 Pd1 0.0464(2) 0.0260(2) 0.0331(2) 0.00232(16) 0.01250(16) 0.00382(15) S2 0.0655(6) 0.0266(4) 0.0352(5) 0.0029(4) 0.0193(4) 0.0039(4) Cl3 0.0716(7) 0.0438(6) 0.0562(6) -0.0059(5) 0.0094(5) -0.0059(5) S1 0.0490(6) 0.0360(5) 0.0686(7) -0.0013(4) 0.0153(5) -0.0037(5) Cl1 0.0954(11) 0.1065(13) 0.1058(12) 0.0117(9) 0.0429(10) -0.0049(10) N4 0.0450(18) 0.0376(17) 0.0415(17) 0.0034(14) 0.0142(14) -0.0023(14) N3 0.0423(17) 0.0386(17) 0.0340(15) 0.0057(13) 0.0145(13) 0.0048(13) C8 0.0349(18) 0.0316(18) 0.0345(18) 0.0032(14) 0.0114(15) 0.0018(15) N1 0.0355(16) 0.0424(18) 0.057(2) -0.0001(14) 0.0128(15) -0.0106(16) N2 0.0483(19) 0.0444(19) 0.053(2) -0.0042(16) 0.0134(16) -0.0128(16) C11 0.051(2) 0.037(2) 0.045(2) 0.0051(17) 0.0188(18) 0.0115(17) C1 0.039(2) 0.036(2) 0.052(2) -0.0010(16) 0.0144(18) -0.0053(17) C9 0.055(2) 0.071(3) 0.0322(19) 0.010(2) 0.0158(18) 0.0009(19) C14 0.065(3) 0.039(2) 0.068(3) -0.004(2) 0.015(2) 0.010(2) C10 0.050(2) 0.065(3) 0.043(2) 0.005(2) 0.0156(19) -0.016(2) C4 0.040(2) 0.057(3) 0.054(2) -0.0051(19) 0.0094(19) -0.008(2) C3 0.055(3) 0.051(3) 0.074(3) 0.000(2) 0.021(2) -0.025(2) C2 0.047(2) 0.050(3) 0.085(3) 0.008(2) 0.017(2) -0.017(2) C13 0.065(3) 0.045(2) 0.064(3) 0.018(2) 0.028(2) 0.013(2) C7 0.064(3) 0.095(4) 0.052(3) -0.009(3) 0.017(2) -0.011(3) C6 0.058(3) 0.064(3) 0.072(3) -0.023(2) 0.011(2) -0.016(3) C12 0.082(3) 0.059(3) 0.059(3) 0.011(2) 0.029(3) 0.029(2) C5 0.061(3) 0.083(4) 0.077(4) 0.003(3) -0.005(3) 0.002(3) Cl2 0.192(3) 0.243(4) 0.132(2) -0.029(3) -0.020(2) 0.065(2) C15 0.088(4) 0.059(3) 0.157(7) -0.009(3) 0.040(4) -0.037(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 0.0000 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' 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' Pd Pd -0.9988 1.0072 '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 S1 Pd1 S1 . 3_666 180.00(6) ? S1 Pd1 S2 . 3_666 84.68(4) yes S1 Pd1 S2 3_666 3_666 95.32(4) ? S1 Pd1 S2 . . 95.32(4) yes S1 Pd1 S2 3_666 . 84.68(4) ? S2 Pd1 S2 3_666 . 180.000(14) ? S1 Pd1 Cl3 . . 84.61(3) ? S1 Pd1 Cl3 3_666 . 95.39(3) ? S2 Pd1 Cl3 3_666 . 106.22(3) ? S2 Pd1 Cl3 . . 73.78(3) ? C8 S2 Pd1 . . 102.76(12) yes C1 S1 Pd1 . . 109.04(13) yes C8 N4 C10 . . 110.6(3) ? C8 N4 H4A . . 124.7 ? C10 N4 H4A . . 124.7 ? C8 N3 C9 . . 108.1(3) ? C8 N3 C11 . . 126.4(3) ? C9 N3 C11 . . 125.5(3) ? N4 C8 N3 . . 106.4(3) ? N4 C8 S2 . . 125.8(3) ? N3 C8 S2 . . 127.8(3) ? C1 N1 C2 . . 107.6(3) ? C1 N1 C4 . . 127.2(3) ? C2 N1 C4 . . 125.2(4) ? C1 N2 C3 . . 110.0(4) ? C1 N2 H2A . . 125.0 ? C3 N2 H2A . . 125.0 ? N3 C11 C13 . . 108.6(3) ? N3 C11 C14 . . 109.5(3) ? C13 C11 C14 . . 111.8(4) ? N3 C11 C12 . . 108.6(3) ? C13 C11 C12 . . 109.8(3) ? C14 C11 C12 . . 108.5(4) ? N2 C1 N1 . . 106.8(3) ? N2 C1 S1 . . 123.1(3) ? N1 C1 S1 . . 130.0(3) ? C10 C9 N3 . . 107.5(4) ? C10 C9 H9A . . 126.2 ? N3 C9 H9A . . 126.2 ? C11 C14 H14A . . 109.5 ? C11 C14 H14B . . 109.5 ? H14A C14 H14B . . 109.5 ? C11 C14 H14C . . 109.5 ? H14A C14 H14C . . 109.5 ? H14B C14 H14C . . 109.5 ? C9 C10 N4 . . 107.4(4) ? C9 C10 H10A . . 126.3 ? N4 C10 H10A . . 126.3 ? N1 C4 C7 . . 108.0(3) ? N1 C4 C6 . . 108.6(4) ? C7 C4 C6 . . 112.8(4) ? N1 C4 C5 . . 108.5(4) ? C7 C4 C5 . . 109.4(4) ? C6 C4 C5 . . 109.5(4) ? C2 C3 N2 . . 107.2(4) ? C2 C3 H3A . . 126.4 ? N2 C3 H3A . . 126.4 ? C3 C2 N1 . . 108.4(4) ? C11 C13 H13A . . 109.5 ? C11 C13 H13B . . 109.5 ? H13A C13 H13B . . 109.5 ? C11 C13 H13C . . 109.5 ? H13A C13 H13C . . 109.5 ? H13B C13 H13C . . 109.5 ? C4 C7 H7A . . 109.5 ? C4 C7 H7B . . 109.5 ? H7A C7 H7B . . 109.5 ? C4 C7 H7C . . 109.5 ? H7A C7 H7C . . 109.5 ? H7B C7 H7C . . 109.5 ? C4 C6 H6A . . 109.5 ? C4 C6 H6B . . 109.5 ? H6A C6 H6B . . 109.5 ? C4 C6 H6C . . 109.5 ? H6A C6 H6C . . 109.5 ? H6B C6 H6C . . 109.5 ? C11 C12 H12A . . 109.5 ? C11 C12 H12B . . 109.5 ? H12A C12 H12B . . 109.5 ? C11 C12 H12C . . 109.5 ? H12A C12 H12C . . 109.5 ? H12B C12 H12C . . 109.5 ? C4 C5 H5A . . 109.5 ? C4 C5 H5B . . 109.5 ? H5A C5 H5B . . 109.5 ? C4 C5 H5C . . 109.5 ? H5A C5 H5C . . 109.5 ? H5B C5 H5C . . 109.5 ? Cl2 C15 Cl1 . . 111.4(3) ? Cl2 C15 H15A . . 109.3 ? Cl1 C15 H15A . . 109.3 ? Cl2 C15 H15B . . 109.3 ? Cl1 C15 H15B . . 109.3 ? H15A C15 H15B . . 108.0 ? 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 Pd1 S1 . 2.3193(11) yes Pd1 S1 3_666 2.3193(11) ? Pd1 S2 3_666 2.3263(9) ? Pd1 S2 . 2.3263(9) yes Pd1 Cl3 . 3.9048(11) ? S2 C8 . 1.709(3) yes S1 C1 . 1.723(4) yes Cl1 C15 . 1.732(7) ? N4 C8 . 1.328(4) yes N4 C10 . 1.358(5) ? N4 H4A . 0.8600 ? N3 C8 . 1.362(4) ? N3 C9 . 1.385(5) ? N3 C11 . 1.505(5) ? N1 C1 . 1.348(5) ? N1 C2 . 1.380(5) ? N1 C4 . 1.502(5) ? N2 C1 . 1.336(5) ? N2 C3 . 1.354(6) ? N2 H2A . 0.8600 ? C11 C13 . 1.517(6) ? C11 C14 . 1.528(6) ? C11 C12 . 1.521(5) ? C9 C10 . 1.331(6) ? C9 H9A . 0.9300 ? C14 H14A . 0.9600 ? C14 H14B . 0.9600 ? C14 H14C . 0.9600 ? C10 H10A . 0.9300 ? C4 C7 . 1.514(6) ? C4 C6 . 1.515(6) ? C4 C5 . 1.521(6) ? C3 C2 . 1.318(6) ? C3 H3A . 0.9300 ? C2 H2B . 0.9300 ? C13 H13A . 0.9600 ? C13 H13B . 0.9600 ? C13 H13C . 0.9600 ? C7 H7A . 0.9600 ? C7 H7B . 0.9600 ? C7 H7C . 0.9600 ? C6 H6A . 0.9600 ? C6 H6B . 0.9600 ? C6 H6C . 0.9600 ? C12 H12A . 0.9600 ? C12 H12B . 0.9600 ? C12 H12C . 0.9600 ? C5 H5A . 0.9600 ? C5 H5B . 0.9600 ? C5 H5C . 0.9600 ? Cl2 C15 . 1.697(7) ? C15 H15A . 0.9700 ? C15 H15B . 0.9700 ? loop_ _geom_hbond_atom_site_label_D _geom_hbond_atom_site_label_H _geom_hbond_atom_site_label_A _geom_hbond_site_symmetry_A _geom_hbond_distance_DH _geom_hbond_distance_HA _geom_hbond_distance_DA _geom_hbond_angle_DHA _geom_hbond_publ_flag N2 H2a Cl3 . 0.86 2.24 3.080(4) 165 yes N4 H4a Cl3 3_666 0.86 2.40 3.131(3) 143 yes 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_site_symmetry_1 _geom_torsion S1 Pd1 S2 C8 . 91.02(13) S1 Pd1 S2 C8 3_666 -88.98(13) S2 Pd1 S2 C8 . 20.04(15) Cl3 Pd1 S2 C8 3_666 -6.19(15) S2 Pd1 S1 C1 3_666 -159.70(15) S2 Pd1 S1 C1 . 20.30(15) Cl3 Pd1 S1 C1 . -52.81(15) C10 N4 C8 N3 . 1.4(4) C10 N4 C8 S2 . -176.9(3) C9 N3 C8 N4 . -1.0(4) C11 N3 C8 N4 . -179.8(3) C9 N3 C8 S2 . 177.2(3) C11 N3 C8 S2 . -1.5(5) Pd1 S2 C8 N4 . -0.1(3) Pd1 S2 C8 N3 . -178.0(3) C8 N3 C11 C13 . 65.6(5) C9 N3 C11 C13 . -112.9(4) C8 N3 C11 C14 . -56.8(5) C9 N3 C11 C14 . 124.7(4) C8 N3 C11 C12 . -175.0(4) C9 N3 C11 C12 . 6.5(5) C3 N2 C1 N1 . 0.0(5) C3 N2 C1 S1 . 175.8(3) C2 N1 C1 N2 . 0.4(5) C4 N1 C1 N2 . -179.1(4) C2 N1 C1 S1 . -174.9(3) C4 N1 C1 S1 . 5.6(6) Pd1 S1 C1 N2 . 59.8(4) Pd1 S1 C1 N1 . -125.5(4) C8 N3 C9 C10 . 0.3(5) C11 N3 C9 C10 . 179.1(4) N3 C9 C10 N4 . 0.5(5) C8 N4 C10 C9 . -1.2(5) C1 N1 C4 C7 . 58.9(6) C2 N1 C4 C7 . -120.5(5) C1 N1 C4 C6 . -63.6(5) C2 N1 C4 C6 . 116.9(5) C1 N1 C4 C5 . 177.4(4) C2 N1 C4 C5 . -2.1(6) C1 N2 C3 C2 . -0.5(5) N2 C3 C2 N1 . 0.8(6) C1 N1 C2 C3 . -0.8(5) C4 N1 C2 C3 . 178.8(4)