#------------------------------------------------------------------------------ #$Date: 2025-03-22 01:36:20 +0200 (Sat, 22 Mar 2025) $ #$Revision: 298556 $ #$URL: file:///home/coder/svn-repositories/cod/cif/7/25/01/7250168.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_7250168 loop_ _publ_author_name 'van der Poll, Hendrik Johannes' 'Erasmus, Rudolph' 'Rademeyer, Melanie' _publ_section_title ; Structures and Band Gaps of Lead-Free Dabconium-Containing Hybrid Alkali-Metal Halide Perovskites ; _journal_name_full CrystEngComm _journal_paper_doi 10.1039/D4CE00907J _journal_year 2025 _chemical_formula_moiety 'Cl3 Na, 2(C3 H7 N)' _chemical_formula_sum 'C6 H14 Cl3 N2 Na' _chemical_formula_weight 243.53 _space_group_crystal_system trigonal _space_group_IT_number 167 _space_group_name_Hall '-R 3 2"c' _space_group_name_H-M_alt 'R -3 c :H' _atom_sites_solution_hydrogens mixed _atom_sites_solution_primary difmap _audit_creation_method SHELXL-2018/3 _audit_update_record ; 2024-12-10 deposited with the CCDC. 2025-03-21 downloaded from the CCDC. ; _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 18 _cell_length_a 15.87470(10) _cell_length_b 15.87470(10) _cell_length_c 21.1921(2) _cell_measurement_reflns_used 21668 _cell_measurement_temperature 149.98(10) _cell_measurement_theta_max 76.0790 _cell_measurement_theta_min 5.2450 _cell_volume 4625.04(6) _computing_cell_refinement 'CrysAlisPro 1.171.40.23a (Rigaku OD, 2018)' _computing_data_collection 'CrysAlisPro 1.171.40.23a (Rigaku OD, 2018)' _computing_data_reduction 'CrysAlisPro 1.171.40.23a (Rigaku OD, 2018)' _computing_molecular_graphics 'Mercury (Macrae et al., 2008)' _computing_publication_material 'Mercury (Macrae et al., 2008)' _computing_structure_refinement 'SHELXL-2018/3 (Sheldrick, 2018)' _computing_structure_solution 'SHELXTS (Sheldrick, 2015)' _diffrn_ambient_temperature 149.98(10) _diffrn_detector 'CCD plate' _diffrn_detector_type HyPix _diffrn_measured_fraction_theta_full 1.000 _diffrn_measured_fraction_theta_max 1.000 _diffrn_measurement_device 'four-circle diffractometer' _diffrn_measurement_device_type 'XtaLAB Synergy R, DW system, HyPix' _diffrn_measurement_method '\w scans' _diffrn_radiation_monochromator mirror _diffrn_radiation_probe x-ray _diffrn_radiation_type CuK\a _diffrn_radiation_wavelength 1.54184 _diffrn_reflns_av_R_equivalents 0.0452 _diffrn_reflns_av_unetI/netI 0.0113 _diffrn_reflns_Laue_measured_fraction_full 1.000 _diffrn_reflns_Laue_measured_fraction_max 1.000 _diffrn_reflns_limit_h_max 19 _diffrn_reflns_limit_h_min -19 _diffrn_reflns_limit_k_max 19 _diffrn_reflns_limit_k_min -19 _diffrn_reflns_limit_l_max 23 _diffrn_reflns_limit_l_min -26 _diffrn_reflns_number 29780 _diffrn_reflns_point_group_measured_fraction_full 1.000 _diffrn_reflns_point_group_measured_fraction_max 1.000 _diffrn_reflns_theta_full 67.684 _diffrn_reflns_theta_max 74.370 _diffrn_reflns_theta_min 5.270 _diffrn_source 'Rotating-anode X-ray tube' _diffrn_source_type 'Rigaku (Mo) X-ray Source' _exptl_absorpt_coefficient_mu 8.077 _exptl_absorpt_correction_T_max 1.00000 _exptl_absorpt_correction_T_min 0.69897 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_process_details ; CrysAlisPro 1.171.40.23a (Rigaku Oxford Diffraction, 2018) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. ; _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.574 _exptl_crystal_description block _exptl_crystal_F_000 2268.0 _exptl_crystal_size_max 0.092 _exptl_crystal_size_mid 0.047 _exptl_crystal_size_min 0.032 _refine_diff_density_max 0.261 _refine_diff_density_min -0.252 _refine_diff_density_rms 0.052 _refine_ls_extinction_coef 0.00019(3) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_extinction_method 'SHELXL-2018/3 (Sheldrick 2018)' _refine_ls_goodness_of_fit_ref 1.034 _refine_ls_hydrogen_treatment mixed _refine_ls_matrix_type full _refine_ls_number_parameters 61 _refine_ls_number_reflns 1061 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.034 _refine_ls_R_factor_all 0.0230 _refine_ls_R_factor_gt 0.0226 _refine_ls_shift/su_max 0.001 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w=1/[\s^2^(Fo^2^)+(0.0626P)^2^+3.4787P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0777 _refine_ls_wR_factor_ref 0.0781 _reflns_Friedel_coverage 0.000 _reflns_number_gt 1045 _reflns_number_total 1061 _reflns_threshold_expression 'I > 2\s(I)' _cod_data_source_file d4ce00907j2.cif _cod_data_source_block shelx_CCDC2 _cod_original_cell_volume 4625.04(7) _cod_database_code 7250168 _shelx_shelxl_version_number 2018/3 _shelx_space_group_comment ; The symmetry employed for this shelxl refinement is uniquely defined by the following loop, which should always be used as a source of symmetry information in preference to the above space-group names. They are only intended as comments. ; _shelx_res_file ; TITL mo_HJ016_0m_a.res in R-3c shelx.res created by SHELXL-2018/3 at 13:13:45 on 30-Apr-2020 CELL 1.54184 15.8747 15.8747 21.1921 90 90 120 ZERR 36 0.0001 0.0001 0.0002 0 0 0 LATT 3 SYMM - Y, X - Y, Z SYMM - X + Y, - X, Z SYMM Y, X, 1/2 - Z SYMM X - Y, - Y, 1/2 - Z SYMM - X, - X + Y, 1/2 - Z SFAC C H CL N NA UNIT 180 180 18 36 18 MERG 2 SHEL 99 0.80 FMAP 2 PLAN 20 ACTA EQIV $8 x-y+1, x, -z+1 HTAB C2 Cl2_$8 EQIV $5 x-y+2/3, x+1/3, -z+4/3 HTAB C2 Cl1_$5 EQIV $4 -x+y, -x+1, z HTAB C1 Cl2_$4 HTAB C1 Cl2_$8 EQIV $2 -y+1, x-y+1, z HTAB C3 Cl1_$2 HTAB N1 Cl1 BOND $H CONF LIST 6 L.S. 10 TEMP 18.52 WGHT 0.062600 3.478700 EXTI 0.000186 FVAR 0.45410 CL1 3 0.359593 0.536954 0.587888 11.00000 0.01161 0.01765 = 0.01962 -0.00233 0.00059 0.00642 N1 4 0.576409 0.616122 0.583658 11.00000 0.01004 0.01556 = 0.02113 0.00084 0.00108 0.00607 CL2 3 0.333333 0.812308 0.416667 10.50000 0.01862 0.01889 = 0.02179 -0.00089 -0.00178 0.00931 NA2 5 0.333333 0.666667 0.666667 10.16667 0.01670 0.01670 = 0.01525 0.00000 0.00000 0.00835 NA1 5 0.333333 0.666667 0.497807 10.33333 0.01977 0.01977 = 0.01824 0.00000 0.00000 0.00988 C2 1 0.611262 0.589477 0.641609 11.00000 0.01608 0.01929 = 0.01734 0.00424 0.00210 0.00706 AFIX 23 H2B 2 0.586104 0.519829 0.642679 11.00000 -1.20000 H2A 2 0.588579 0.607521 0.678946 11.00000 -1.20000 AFIX 0 C1 1 0.610595 0.587670 0.526283 11.00000 0.01608 0.02015 = 0.01763 -0.00414 -0.00144 0.00720 AFIX 23 H1A 2 0.585073 0.601928 0.488715 11.00000 -1.20000 H1B 2 0.587569 0.518409 0.527099 11.00000 -1.20000 AFIX 0 C3 1 0.610979 0.722391 0.582878 11.00000 0.02115 0.01738 = 0.03538 0.00228 0.00262 0.01373 AFIX 23 H3B 2 0.586164 0.739810 0.619439 11.00000 -1.20000 H3A 2 0.587608 0.738952 0.545228 11.00000 -1.20000 AFIX 0 H1 2 0.509634 0.584028 0.585568 11.00000 0.03115 HKLF 4 REM mo_HJ016_0m_a.res in R-3c REM wR2 = 0.0781, GooF = S = 1.034, Restrained GooF = 1.034 for all data REM R1 = 0.0226 for 1045 Fo > 4sig(Fo) and 0.0230 for all 1061 data REM 61 parameters refined using 0 restraints END WGHT 0.0276 8.4308 REM Highest difference peak 0.261, deepest hole -0.252, 1-sigma level 0.052 Q1 1 0.5951 0.6681 0.5854 11.00000 0.05 0.26 Q2 1 0.6638 0.6185 0.5305 11.00000 0.05 0.24 Q3 1 0.3333 0.6667 0.4167 10.16667 0.05 0.24 Q4 1 0.5928 0.6036 0.5570 11.00000 0.05 0.23 Q5 1 0.6667 0.7434 0.5833 10.50000 0.05 0.23 Q6 1 0.3640 0.4680 0.5837 11.00000 0.05 0.20 Q7 1 0.5789 0.7466 0.5780 11.00000 0.05 0.19 Q8 1 0.4271 0.5742 0.5814 11.00000 0.05 0.19 Q9 1 0.2916 0.4659 0.5963 11.00000 0.05 0.19 Q10 1 0.2724 0.8369 0.4133 11.00000 0.05 0.19 Q11 1 0.3394 0.4671 0.5942 11.00000 0.05 0.19 Q12 1 0.5921 0.5999 0.6105 11.00000 0.05 0.18 Q13 1 0.4220 0.5191 0.5940 11.00000 0.05 0.18 Q14 1 0.4154 0.8694 0.4074 11.00000 0.05 0.18 Q15 1 0.3333 0.8738 0.4167 10.50000 0.05 0.17 Q16 1 0.3333 0.6667 0.7356 10.33333 0.05 0.17 Q17 1 0.3439 0.5970 0.5766 11.00000 0.05 0.16 Q18 1 0.3143 0.5255 0.5385 11.00000 0.05 0.15 Q19 1 0.2875 0.5255 0.5959 11.00000 0.05 0.15 Q20 1 0.3509 0.5381 0.6473 11.00000 0.05 0.15 ; _shelx_res_checksum 26760 loop_ _space_group_symop_operation_xyz 'x, y, z' '-y, x-y, z' '-x+y, -x, z' 'y, x, -z+1/2' 'x-y, -y, -z+1/2' '-x, -x+y, -z+1/2' 'x+2/3, y+1/3, z+1/3' '-y+2/3, x-y+1/3, z+1/3' '-x+y+2/3, -x+1/3, z+1/3' 'y+2/3, x+1/3, -z+5/6' 'x-y+2/3, -y+1/3, -z+5/6' '-x+2/3, -x+y+1/3, -z+5/6' 'x+1/3, y+2/3, z+2/3' '-y+1/3, x-y+2/3, z+2/3' '-x+y+1/3, -x+2/3, z+2/3' 'y+1/3, x+2/3, -z+7/6' 'x-y+1/3, -y+2/3, -z+7/6' '-x+1/3, -x+y+2/3, -z+7/6' '-x, -y, -z' 'y, -x+y, -z' 'x-y, x, -z' '-y, -x, z-1/2' '-x+y, y, z-1/2' 'x, x-y, z-1/2' '-x+2/3, -y+1/3, -z+1/3' 'y+2/3, -x+y+1/3, -z+1/3' 'x-y+2/3, x+1/3, -z+1/3' '-y+2/3, -x+1/3, z-1/6' '-x+y+2/3, y+1/3, z-1/6' 'x+2/3, x-y+1/3, z-1/6' '-x+1/3, -y+2/3, -z+2/3' 'y+1/3, -x+y+2/3, -z+2/3' 'x-y+1/3, x+2/3, -z+2/3' '-y+1/3, -x+2/3, z+1/6' '-x+y+1/3, y+2/3, z+1/6' 'x+1/3, x-y+2/3, z+1/6' 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_site_symmetry_order _atom_site_calc_flag _atom_site_refinement_flags_posn _atom_site_refinement_flags_adp _atom_site_refinement_flags_occupancy _atom_site_disorder_assembly _atom_site_disorder_group Cl1 Cl 0.35959(2) 0.53695(2) 0.58789(2) 0.01669(17) Uani 1 1 d . . . . . N1 N 0.57641(9) 0.61612(9) 0.58366(5) 0.0157(3) Uani 1 1 d . . . . . Cl2 Cl 0.333333 0.81231(3) 0.416667 0.01979(18) Uani 1 2 d S T P . . Na2 Na 0.333333 0.666667 0.666667 0.0162(3) Uani 1 6 d S T P . . Na1 Na 0.333333 0.666667 0.49781(4) 0.0193(2) Uani 1 3 d S T P . . C2 C 0.61126(10) 0.58948(10) 0.64161(6) 0.0184(3) Uani 1 1 d . . . . . H2B H 0.586104 0.519829 0.642679 0.022 Uiso 1 1 calc R U . . . H2A H 0.588579 0.607521 0.678946 0.022 Uiso 1 1 calc R U . . . C1 C 0.61060(10) 0.58767(10) 0.52628(6) 0.0188(3) Uani 1 1 d . . . . . H1A H 0.585073 0.601928 0.488715 0.023 Uiso 1 1 calc R U . . . H1B H 0.587569 0.518409 0.527099 0.023 Uiso 1 1 calc R U . . . C3 C 0.61098(11) 0.72239(11) 0.58288(8) 0.0228(3) Uani 1 1 d . . . . . H3B H 0.586164 0.739810 0.619439 0.027 Uiso 1 1 calc R U . . . H3A H 0.587608 0.738952 0.545228 0.027 Uiso 1 1 calc R U . . . H1 H 0.5096(16) 0.5840(13) 0.5856(8) 0.031(5) Uiso 1 1 d . . . . . 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 Cl1 0.0116(2) 0.0177(2) 0.0196(2) -0.00233(11) 0.00059(11) 0.00642(15) N1 0.0100(6) 0.0156(6) 0.0211(6) 0.0008(4) 0.0011(4) 0.0061(5) Cl2 0.0186(3) 0.0189(2) 0.0218(3) -0.00089(9) -0.00178(19) 0.00931(13) Na2 0.0167(4) 0.0167(4) 0.0152(6) 0.000 0.000 0.0084(2) Na1 0.0198(3) 0.0198(3) 0.0182(5) 0.000 0.000 0.00988(16) C2 0.0161(7) 0.0193(7) 0.0173(7) 0.0042(5) 0.0021(5) 0.0071(5) C1 0.0161(6) 0.0201(7) 0.0176(6) -0.0041(5) -0.0014(5) 0.0072(5) C3 0.0212(8) 0.0174(7) 0.0354(8) 0.0023(6) 0.0026(6) 0.0137(6) loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0181 0.0091 '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 0.3639 0.7018 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' N N 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Na Na 0.1353 0.1239 '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 Na2 Cl1 Na1 75.761(15) . . ? C2 N1 C3 110.55(11) . . ? C2 N1 C1 110.04(11) . . ? C3 N1 C1 110.49(11) . . ? C2 N1 H1 107.2(12) . . ? C3 N1 H1 107.3(12) . . ? C1 N1 H1 111.2(11) . . ? Na1 Cl2 Na1 73.28(3) 10_455 . ? Cl1 Na2 Cl1 91.074(10) 27_556 2_665 ? Cl1 Na2 Cl1 91.074(10) 27_556 . ? Cl1 Na2 Cl1 88.926(10) 2_665 . ? Cl1 Na2 Cl1 88.925(10) 27_556 25_566 ? Cl1 Na2 Cl1 91.075(10) 2_665 25_566 ? Cl1 Na2 Cl1 180.0 . 25_566 ? Cl1 Na2 Cl1 88.925(10) 27_556 26_456 ? Cl1 Na2 Cl1 180.0 2_665 26_456 ? Cl1 Na2 Cl1 91.075(10) . 26_456 ? Cl1 Na2 Cl1 88.924(10) 25_566 26_456 ? Cl1 Na2 Cl1 180.0 27_556 3_565 ? Cl1 Na2 Cl1 88.925(10) 2_665 3_565 ? Cl1 Na2 Cl1 88.927(10) . 3_565 ? Cl1 Na2 Cl1 91.075(10) 25_566 3_565 ? Cl1 Na2 Cl1 91.076(10) 26_456 3_565 ? Cl1 Na2 Na1 126.020(7) 27_556 . ? Cl1 Na2 Na1 53.980(7) 2_665 . ? Cl1 Na2 Na1 53.980(7) . . ? Cl1 Na2 Na1 126.022(7) 25_566 . ? Cl1 Na2 Na1 126.022(7) 26_456 . ? Cl1 Na2 Na1 53.980(7) 3_565 . ? Cl1 Na2 Na1 53.981(7) 27_556 25_566 ? Cl1 Na2 Na1 126.020(7) 2_665 25_566 ? Cl1 Na2 Na1 126.023(7) . 25_566 ? Cl1 Na2 Na1 53.976(7) 25_566 25_566 ? Cl1 Na2 Na1 53.978(7) 26_456 25_566 ? Cl1 Na2 Na1 126.019(7) 3_565 25_566 ? Na1 Na2 Na1 180.0 . 25_566 ? Cl2 Na1 Cl2 88.04(2) . 3_565 ? Cl2 Na1 Cl2 88.04(2) . 2_665 ? Cl2 Na1 Cl2 88.04(2) 3_565 2_665 ? Cl2 Na1 Cl1 89.590(7) . 2_665 ? Cl2 Na1 Cl1 99.257(7) 3_565 2_665 ? Cl2 Na1 Cl1 172.248(13) 2_665 2_665 ? Cl2 Na1 Cl1 172.249(13) . . ? Cl2 Na1 Cl1 89.590(7) 3_565 . ? Cl2 Na1 Cl1 99.259(7) 2_665 . ? Cl1 Na1 Cl1 83.51(2) 2_665 . ? Cl2 Na1 Cl1 99.256(7) . 3_565 ? Cl2 Na1 Cl1 172.250(13) 3_565 3_565 ? Cl2 Na1 Cl1 89.590(7) 2_665 3_565 ? Cl1 Na1 Cl1 83.51(2) 2_665 3_565 ? Cl1 Na1 Cl1 83.51(2) . 3_565 ? Cl2 Na1 Na1 53.358(15) . 10_455 ? Cl2 Na1 Na1 53.362(15) 3_565 10_455 ? Cl2 Na1 Na1 53.359(15) 2_665 10_455 ? Cl1 Na1 Na1 129.740(14) 2_665 10_455 ? Cl1 Na1 Na1 129.742(14) . 10_455 ? Cl1 Na1 Na1 129.737(14) 3_565 10_455 ? Cl2 Na1 Na2 126.640(15) . . ? Cl2 Na1 Na2 126.640(15) 3_565 . ? Cl2 Na1 Na2 126.641(15) 2_665 . ? Cl1 Na1 Na2 50.260(14) 2_665 . ? Cl1 Na1 Na2 50.260(14) . . ? Cl1 Na1 Na2 50.261(14) 3_565 . ? Na1 Na1 Na2 180.0 10_455 . ? N1 C2 C1 108.31(11) . 18_655 ? N1 C2 H2B 110.0 . . ? C1 C2 H2B 110.0 18_655 . ? N1 C2 H2A 110.0 . . ? C1 C2 H2A 110.0 18_655 . ? H2B C2 H2A 108.4 . . ? N1 C1 C2 108.76(10) . 18_655 ? N1 C1 H1A 109.9 . . ? C2 C1 H1A 109.9 18_655 . ? N1 C1 H1B 109.9 . . ? C2 C1 H1B 109.9 18_655 . ? H1A C1 H1B 108.3 . . ? N1 C3 C3 108.58(7) . 18_655 ? N1 C3 H3B 110.0 . . ? C3 C3 H3B 110.0 18_655 . ? N1 C3 H3A 110.0 . . ? C3 C3 H3A 110.0 18_655 . ? H3B C3 H3A 108.4 . . ? 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 Cl1 Na2 2.8389(3) . ? Cl1 Na1 2.9861(6) . ? N1 C2 1.4924(17) . ? N1 C3 1.4905(18) . ? N1 C1 1.4906(17) . ? N1 H1 0.92(2) . ? Cl2 Na1 2.8812(6) 10_455 ? Cl2 Na1 2.8813(6) . ? Na2 Na1 3.5785(9) . ? Na2 Na1 3.5786(9) 25_566 ? Na1 Na1 3.4390(17) 10_455 ? C2 C1 1.5330(19) 18_655 ? C2 H2B 0.9700 . ? C2 H2A 0.9700 . ? C1 H1A 0.9700 . ? C1 H1B 0.9700 . ? C3 C3 1.531(3) 18_655 ? C3 H3B 0.9700 . ? C3 H3A 0.9700 . ? loop_ _geom_hbond_atom_site_label_D _geom_hbond_atom_site_label_H _geom_hbond_atom_site_label_A _geom_hbond_distance_DH _geom_hbond_distance_HA _geom_hbond_distance_DA _geom_hbond_angle_DHA _geom_hbond_site_symmetry_A _geom_hbond_publ_flag C2 H2B Cl2 0.97 2.89 3.7797(14) 152.9 21_656 yes C2 H2A Cl1 0.97 2.91 3.8035(15) 154.3 27_556 yes C1 H1A Cl2 0.97 2.82 3.7356(15) 157.6 3_565 yes C1 H1B Cl2 0.97 2.84 3.7476(15) 156.1 21_656 yes C3 H3B Cl1 0.97 2.93 3.4345(15) 113.8 2_665 yes N1 H1 Cl1 0.92(2) 2.11(2) 3.0180(12) 169.1(17) . 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 _geom_torsion_site_symmetry_1 _geom_torsion_site_symmetry_2 _geom_torsion_site_symmetry_3 _geom_torsion_site_symmetry_4 _geom_torsion_publ_flag C3 N1 C2 C1 -62.19(14) . . . 18_655 ? C1 N1 C2 C1 60.14(13) . . . 18_655 ? C2 N1 C1 C2 -62.55(13) . . . 18_655 ? C3 N1 C1 C2 59.81(14) . . . 18_655 ? C2 N1 C3 C3 60.04(19) . . . 18_655 ? C1 N1 C3 C3 -62.02(19) . . . 18_655 ?