data_global _journal_name_full CrystEngComm _journal_coden_cambridge 1350 _audit_creation_method SHELXL-97 _publ_contact_author 'ZhiRong Chen' _publ_contact_author_address ; College of Chemistry and Chemical Engineering Fuzhou University Fuzhou,FuJian,350002 P.R.China ; _publ_contact_author_email zrchen@fzu.edu.cn _publ_contact_author_fax +86-591-87893239 _publ_contact_author_phone +86-591-87893236 _publ_contact_letter ; This file is a new data for deposit, which expected to be published in CrystEngComm. ; loop_ _publ_author_name _publ_author_address 'HaoHong Li' ; College of Chemistry and Chemical Engineering Fuzhou University Fuzhou,FuJian,350002 P.R.China ; 'YunJie Wang' ; College of Chemistry and Chemical Engineering Fuzhou University Fuzhou,FuJian,350002 P.R.China ; 'HaiJun Dong' ; College of Chemistry and Chemical Engineering Fuzhou University Fuzhou,FuJian,350002 P.R.China ; 'ZhiRong Chen' ; College of Chemistry and Chemical Engineering Fuzhou University Fuzhou,FuJian,350002 P.R.China ; 'Yan-Ling Wu' ; Center of Analysis and Measurement Fuzhou University Fuzhou,FuJian,350002 P.R.China ; ; Min Wang ; ; College of Chemistry and Chemical Engineering Fuzhou University Fuzhou,FuJian,350002 P.R.China ; 'hu-Wei Huang' ; College of Chemistry and Chemical Engineering Fuzhou University Fuzhou,FuJian,350002 P.R.China ; _publ_contact_author_name 'ZhiRong Chen' data_yjb04 _database_code_depnum_ccdc_archive 'CCDC 653061' #TrackingRef '- CE-COM-10-2010-000754-cif file.cif' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety 'C4 H8 Cu2 I2 N6 S2, 2(C3 H7 N O)' _chemical_formula_sum 'C10 H22 Cu2 I2 N8 O2 S2 ' _chemical_formula_weight 731.40 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' Cu Cu 0.3201 1.2651 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' I I -0.4742 1.8119 '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 C2/c _symmetry_space_group_name_Hall -C2yc loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, y, -z+1/2' 'x+1/2, y+1/2, z' '-x+1/2, y+1/2, -z+1/2' '-x, -y, -z' 'x, -y, z-1/2' '-x+1/2, -y+1/2, -z' 'x+1/2, -y+1/2, z-1/2' _cell_length_a 23.125(3) _cell_length_b 10.7039(7) _cell_length_c 21.391(5) _cell_angle_alpha 90.00 _cell_angle_beta 118.741(5) _cell_angle_gamma 90.00 _cell_volume 4642.6(13) _cell_formula_units_Z 8 _cell_measurement_temperature 293(2) _cell_measurement_reflns_used 25 _cell_measurement_theta_min 12 _cell_measurement_theta_max 18 _exptl_crystal_description Block _exptl_crystal_colour Red _exptl_crystal_size_max 0.20 _exptl_crystal_size_mid 0.18 _exptl_crystal_size_min 0.15 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 2.093 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 2800.0 _exptl_absorpt_coefficient_mu 4.693 _exptl_absorpt_correction_type Multi-Scan _exptl_absorpt_correction_T_min 0.407 _exptl_absorpt_correction_T_max 0.495 _exptl_absorpt_process_details 'TEXRAY software (Molecular Structure Corporation, 1999)' _exptl_special_details ; ? ; _diffrn_ambient_temperature 293(2) _diffrn_radiation_wavelength 0.71073 _diffrn_radiation_type MoK\a _diffrn_radiation_source 'rotor target' _diffrn_radiation_monochromator graphite _diffrn_measurement_device_type 'Rigaku Weissenberg IP' _diffrn_measurement_method 'scintillation counter' _diffrn_detector_area_resol_mean None _diffrn_standards_number None _diffrn_standards_interval_count 'not measured' _diffrn_standards_interval_time 'not measured' _diffrn_standards_decay_% 'not measured' _diffrn_reflns_number 17421 _diffrn_reflns_av_R_equivalents 0.0242 _diffrn_reflns_av_sigmaI/netI 0.0225 _diffrn_reflns_limit_h_min -30 _diffrn_reflns_limit_h_max 30 _diffrn_reflns_limit_k_min -13 _diffrn_reflns_limit_k_max 13 _diffrn_reflns_limit_l_min -27 _diffrn_reflns_limit_l_max 27 _diffrn_reflns_theta_min 2.01 _diffrn_reflns_theta_max 27.47 _reflns_number_total 5313 _reflns_number_gt 4415 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'TEXRAY software (Molecular Structure Corporation, 1999)' _computing_cell_refinement 'TEXRAY software' _computing_data_reduction 'TEXSAN (Molecular Structure Corporation, 1999)' _computing_structure_solution 'SHELXS-97 (Sheldrick, 1997)' _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _computing_molecular_graphics 'ORTEX (P.McArdle, 1995)' _computing_publication_material "SHELXL-97/2 (Sheldrick,1997)')" _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^)+(0.0369P)^2^+0.0000P] 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 ref _refine_ls_extinction_method SHELXL _refine_ls_extinction_coef 0.0010(2) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_number_reflns 5313 _refine_ls_number_parameters 245 _refine_ls_number_restraints 0 _refine_ls_R_factor_all 0.0526 _refine_ls_R_factor_gt 0.0424 _refine_ls_wR_factor_ref 0.1261 _refine_ls_wR_factor_gt 0.1176 _refine_ls_goodness_of_fit_ref 1.117 _refine_ls_restrained_S_all 1.117 _refine_ls_shift/su_max 0.003 _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 Cu1 Cu 0.26021(3) -0.12017(6) 0.01669(4) 0.04465(18) Uani 1 1 d . . . Cu2 Cu 0.26973(3) 0.13401(6) 0.02179(4) 0.04480(18) Uani 1 1 d . . . I1 I 0.220096(17) 0.00906(3) 0.094013(19) 0.04017(12) Uani 1 1 d . . . I2 I 0.347494(17) 0.00090(3) -0.00928(2) 0.04501(13) Uani 1 1 d . . . S1 S 0.31596(5) -0.30150(12) 0.09343(6) 0.0358(3) Uani 1 1 d . . . S2 S 0.31736(5) 0.30623(12) 0.09746(6) 0.0369(3) Uani 1 1 d . . . N2 N 0.40477(17) -0.3239(4) 0.0498(2) 0.0341(8) Uani 1 1 d . . . H2 H 0.3755 -0.3674 0.0153 0.041 Uiso 1 1 calc R . . N5 N 0.40445(18) 0.3157(4) 0.0516(2) 0.0356(9) Uani 1 1 d . . . H5A H 0.3759 0.2726 0.0163 0.043 Uiso 1 1 calc R . . N6 N 0.46185(18) 0.3487(4) 0.0535(2) 0.0357(8) Uani 1 1 d . . . N3 N 0.46351(17) -0.2994(4) 0.0524(2) 0.0348(8) Uani 1 1 d . . . N4 N 0.4351(2) 0.4134(4) 0.1579(2) 0.0421(10) Uani 1 1 d . . . H4A H 0.476(4) 0.434(7) 0.161(4) 0.08(2) Uiso 1 1 d . . . H4B H 0.426(2) 0.427(5) 0.187(3) 0.035(15) Uiso 1 1 d . . . N1 N 0.4397(2) -0.2248(5) 0.1566(3) 0.0466(11) Uani 1 1 d . . . H1A H 0.477(3) -0.206(6) 0.158(3) 0.067(19) Uiso 1 1 d . . . H1B H 0.435(4) -0.190(7) 0.181(4) 0.09(3) Uiso 1 1 d . . . N8 N 0.3357(2) 0.6055(4) 0.2658(2) 0.0458(10) Uani 1 1 d . . . N7 N 0.4147(2) 0.0711(5) 0.3117(3) 0.0634(14) Uani 1 1 d . . . O2 O 0.4259(2) 0.4938(3) 0.2824(3) 0.0564(11) Uani 1 1 d . . . O1 O 0.4320(2) -0.1098(4) 0.2705(2) 0.0643(11) Uani 1 1 d . . . C1 C 0.3921(2) -0.2809(4) 0.1007(2) 0.0331(9) Uani 1 1 d . . . C2 C 0.4704(2) -0.3394(4) 0.0003(3) 0.0369(10) Uani 1 1 d . . . H2A H 0.4370 -0.3846 -0.0365 0.044 Uiso 1 1 calc R . . C3 C 0.3916(2) 0.3491(4) 0.1037(2) 0.0324(9) Uani 1 1 d . . . C4 C 0.4686(2) 0.3128(5) 0.0006(3) 0.0368(10) Uani 1 1 d . . . H4 H 0.4347 0.2701 -0.0371 0.044 Uiso 1 1 calc R . . C5 C 0.4086(3) -0.0038(6) 0.2617(4) 0.0649(19) Uani 1 1 d . . . H5 H 0.3846 0.0246 0.2150 0.078 Uiso 1 1 calc R . . C6 C 0.4529(5) 0.0299(7) 0.3857(4) 0.090(3) Uani 1 1 d . . . H6A H 0.4533 0.0947 0.4169 0.136 Uiso 1 1 calc R . . H6B H 0.4974 0.0121 0.3961 0.136 Uiso 1 1 calc R . . H6C H 0.4333 -0.0441 0.3927 0.136 Uiso 1 1 calc R . . C7 C 0.38397(19) 0.1906(3) 0.2986(2) 0.113(3) Uani 1 1 d . . . H7A H 0.3949 0.2303 0.3431 0.170 Uiso 1 1 calc R . . H7B H 0.3370 0.1808 0.2712 0.170 Uiso 1 1 calc R . . H7C H 0.3993 0.2413 0.2725 0.170 Uiso 1 1 calc R . . C8 C 0.39984(19) 0.5889(3) 0.2911(2) 0.0506(13) Uani 1 1 d R . . H8 H 0.4276 0.6536 0.3177 0.061 Uiso 1 1 calc R . . C9 C 0.28849(19) 0.5120(3) 0.2239(2) 0.0615(17) Uani 1 1 d R . . H9A H 0.2448 0.5412 0.2106 0.092 Uiso 1 1 calc R . . H9B H 0.2971 0.4367 0.2513 0.092 Uiso 1 1 calc R . . H9C H 0.2920 0.4955 0.1817 0.092 Uiso 1 1 calc R . . C10 C 0.3103(3) 0.7242(6) 0.2743(4) 0.0703(19) Uani 1 1 d . . . H10A H 0.2632 0.7197 0.2531 0.106 Uiso 1 1 calc R . . H10B H 0.3222 0.7885 0.2512 0.106 Uiso 1 1 calc R . . H10C H 0.3289 0.7431 0.3241 0.106 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 Cu1 0.0394(3) 0.0477(4) 0.0545(4) -0.0060(3) 0.0286(3) -0.0056(3) Cu2 0.0426(3) 0.0437(4) 0.0579(4) -0.0034(3) 0.0319(3) -0.0027(3) I1 0.0419(2) 0.0470(2) 0.0415(2) -0.00450(13) 0.02797(16) -0.00399(12) I2 0.0375(2) 0.0413(2) 0.0698(3) 0.00110(14) 0.03670(19) -0.00001(12) S1 0.0323(5) 0.0464(6) 0.0366(6) 0.0007(5) 0.0228(5) -0.0012(5) S2 0.0296(5) 0.0506(7) 0.0368(6) -0.0084(5) 0.0211(5) -0.0082(5) N2 0.0288(18) 0.041(2) 0.038(2) -0.0062(17) 0.0202(16) -0.0061(15) N5 0.0302(18) 0.049(2) 0.036(2) -0.0099(18) 0.0223(16) -0.0110(16) N6 0.0298(18) 0.042(2) 0.042(2) 0.0000(17) 0.0219(17) -0.0010(16) N3 0.0297(18) 0.039(2) 0.042(2) 0.0002(17) 0.0228(17) -0.0022(15) N4 0.034(2) 0.057(3) 0.039(2) -0.013(2) 0.0202(19) -0.0100(18) N1 0.032(2) 0.064(3) 0.045(3) -0.011(2) 0.019(2) -0.006(2) N8 0.048(2) 0.049(2) 0.046(3) 0.001(2) 0.027(2) -0.0003(19) N7 0.053(3) 0.055(3) 0.067(4) -0.004(3) 0.017(3) 0.008(2) O2 0.048(2) 0.065(3) 0.053(3) -0.0018(18) 0.022(2) 0.0114(17) O1 0.055(2) 0.068(3) 0.065(3) -0.012(2) 0.025(2) 0.013(2) C1 0.032(2) 0.035(2) 0.036(2) 0.0034(19) 0.0188(19) 0.0035(17) C2 0.030(2) 0.042(3) 0.044(3) 0.000(2) 0.022(2) -0.0033(19) C3 0.025(2) 0.036(2) 0.037(2) 0.0004(19) 0.0155(18) -0.0001(17) C4 0.033(2) 0.045(3) 0.038(3) -0.001(2) 0.021(2) -0.0025(19) C5 0.050(4) 0.079(5) 0.046(4) 0.002(3) 0.007(3) 0.002(3) C6 0.125(8) 0.081(5) 0.059(5) -0.005(4) 0.040(5) 0.012(5) C7 0.110(7) 0.058(4) 0.128(8) -0.012(5) 0.022(6) 0.022(4) C8 0.047(3) 0.056(3) 0.053(3) 0.001(3) 0.027(3) -0.002(2) C9 0.050(4) 0.083(5) 0.054(4) -0.013(3) 0.027(3) -0.007(3) C10 0.082(5) 0.053(4) 0.098(6) 0.012(3) 0.062(4) 0.017(3) _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 Cu1 S1 2.3161(14) 7_545 ? Cu1 S1 2.4676(14) . ? Cu1 I1 2.6430(8) . ? Cu1 I2 2.6721(7) . ? Cu1 Cu2 2.7276(10) . ? Cu1 Cu1 2.8519(13) 7_545 ? Cu2 S2 2.3487(14) . ? Cu2 S2 2.4559(15) 7 ? Cu2 I2 2.6183(7) . ? Cu2 Cu2 2.6550(13) 7 ? Cu2 I1 2.6829(8) . ? S1 C1 1.707(4) . ? S1 Cu1 2.3161(14) 7_545 ? S2 C3 1.720(4) . ? S2 Cu2 2.4559(15) 7 ? N2 C1 1.336(6) . ? N2 N3 1.358(5) . ? N2 H2 0.8600 . ? N5 C3 1.333(6) . ? N5 N6 1.356(5) . ? N5 H5A 0.8600 . ? N6 C4 1.274(6) . ? N3 C2 1.276(6) . ? N4 C3 1.306(6) . ? N4 H4A 0.95(7) . ? N4 H4B 0.75(5) . ? N1 C1 1.317(6) . ? N1 H1A 0.89(6) . ? N1 H1B 0.69(7) . ? N8 C8 1.325(5) . ? N8 C9 1.433(6) . ? N8 C10 1.446(7) . ? N7 C5 1.291(9) . ? N7 C7 1.424(6) . ? N7 C6 1.461(9) . ? O2 C8 1.243(5) . ? O1 C5 1.230(7) . ? C2 C4 1.447(6) 5_655 ? C2 H2A 0.9300 . ? C4 C2 1.447(6) 5_655 ? C4 H4 0.9300 . ? C5 H5 0.9300 . ? C6 H6A 0.9600 . ? C6 H6B 0.9600 . ? C6 H6C 0.9600 . ? C7 H7A 0.9600 . ? C7 H7B 0.9600 . ? C7 H7C 0.9600 . ? C8 H8 0.9300 . ? C9 H9A 0.9600 . ? C9 H9B 0.9600 . ? C9 H9C 0.9600 . ? C10 H10A 0.9600 . ? C10 H10B 0.9600 . ? C10 H10C 0.9600 . ? 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 S1 Cu1 S1 106.88(4) 7_545 . ? S1 Cu1 I1 120.12(4) 7_545 . ? S1 Cu1 I1 102.92(4) . . ? S1 Cu1 I2 104.20(4) 7_545 . ? S1 Cu1 I2 108.33(4) . . ? I1 Cu1 I2 113.82(3) . . ? S1 Cu1 Cu2 114.15(4) 7_545 . ? S1 Cu1 Cu2 138.74(4) . . ? I1 Cu1 Cu2 59.92(2) . . ? I2 Cu1 Cu2 58.001(18) . . ? S1 Cu1 Cu1 55.89(4) 7_545 7_545 ? S1 Cu1 Cu1 51.00(4) . 7_545 ? I1 Cu1 Cu1 126.94(4) . 7_545 ? I2 Cu1 Cu1 118.12(3) . 7_545 ? Cu2 Cu1 Cu1 169.30(4) . 7_545 ? S2 Cu2 S2 112.95(4) . 7 ? S2 Cu2 I2 116.76(4) . . ? S2 Cu2 I2 101.44(4) 7 . ? S2 Cu2 Cu2 58.40(4) . 7 ? S2 Cu2 Cu2 54.55(4) 7 7 ? I2 Cu2 Cu2 125.58(4) . 7 ? S2 Cu2 I1 100.55(4) . . ? S2 Cu2 I1 111.33(4) 7 . ? I2 Cu2 I1 114.27(3) . . ? Cu2 Cu2 I1 119.90(3) 7 . ? S2 Cu2 Cu1 144.34(5) . . ? S2 Cu2 Cu1 102.01(4) 7 . ? I2 Cu2 Cu1 59.94(2) . . ? Cu2 Cu2 Cu1 155.69(4) 7 . ? I1 Cu2 Cu1 58.48(2) . . ? Cu1 I1 Cu2 61.61(2) . . ? Cu2 I2 Cu1 62.06(2) . . ? C1 S1 Cu1 112.70(17) . 7_545 ? C1 S1 Cu1 98.34(16) . . ? Cu1 S1 Cu1 73.12(4) 7_545 . ? C3 S2 Cu2 112.52(16) . . ? C3 S2 Cu2 107.50(16) . 7 ? Cu2 S2 Cu2 67.05(4) . 7 ? C1 N2 N3 120.4(4) . . ? C1 N2 H2 119.8 . . ? N3 N2 H2 119.8 . . ? C3 N5 N6 120.9(4) . . ? C3 N5 H5A 119.5 . . ? N6 N5 H5A 119.5 . . ? C4 N6 N5 115.6(4) . . ? C2 N3 N2 116.3(4) . . ? C3 N4 H4A 120(4) . . ? C3 N4 H4B 115(4) . . ? H4A N4 H4B 124(6) . . ? C1 N1 H1A 121(4) . . ? C1 N1 H1B 124(7) . . ? H1A N1 H1B 112(7) . . ? C8 N8 C9 121.9(4) . . ? C8 N8 C10 120.5(5) . . ? C9 N8 C10 117.4(4) . . ? C5 N7 C7 123.3(6) . . ? C5 N7 C6 118.6(6) . . ? C7 N7 C6 118.0(5) . . ? N1 C1 N2 118.8(4) . . ? N1 C1 S1 121.0(4) . . ? N2 C1 S1 120.1(3) . . ? N3 C2 C4 118.5(4) . 5_655 ? N3 C2 H2A 120.7 . . ? C4 C2 H2A 120.7 5_655 . ? N4 C3 N5 119.9(4) . . ? N4 C3 S2 121.5(4) . . ? N5 C3 S2 118.6(3) . . ? N6 C4 C2 119.2(4) . 5_655 ? N6 C4 H4 120.4 . . ? C2 C4 H4 120.4 5_655 . ? O1 C5 N7 125.4(7) . . ? O1 C5 H5 117.3 . . ? N7 C5 H5 117.3 . . ? N7 C6 H6A 109.5 . . ? N7 C6 H6B 109.5 . . ? H6A C6 H6B 109.5 . . ? N7 C6 H6C 109.5 . . ? H6A C6 H6C 109.5 . . ? H6B C6 H6C 109.5 . . ? N7 C7 H7A 109.5 . . ? N7 C7 H7B 109.5 . . ? H7A C7 H7B 109.5 . . ? N7 C7 H7C 109.5 . . ? H7A C7 H7C 109.5 . . ? H7B C7 H7C 109.5 . . ? O2 C8 N8 125.3(4) . . ? O2 C8 H8 117.3 . . ? N8 C8 H8 117.3 . . ? N8 C9 H9A 109.5 . . ? N8 C9 H9B 109.5 . . ? H9A C9 H9B 109.5 . . ? N8 C9 H9C 109.5 . . ? H9A C9 H9C 109.5 . . ? H9B C9 H9C 109.5 . . ? N8 C10 H10A 109.5 . . ? N8 C10 H10B 109.5 . . ? H10A C10 H10B 109.5 . . ? N8 C10 H10C 109.5 . . ? H10A C10 H10C 109.5 . . ? H10B C10 H10C 109.5 . . ? _diffrn_measured_fraction_theta_max 0.998 _diffrn_reflns_theta_full 27.47 _diffrn_measured_fraction_theta_full 0.998 _refine_diff_density_max 1.450 _refine_diff_density_min -1.601 _refine_diff_density_rms 0.375