Ferroelastic Hybrid Bismuth Bromides with Dual Dielectric Switches
Zhang, Zhi-Xu; Su, Chang-Yuan; Li, Jie; Song, Xian-Jiang; Fu, Da-Wei; Zhang, Yi; Chemistry of Materials  (2021) –; doi:10.1021/acs.chemmater.1c01699

data_4004003
_publ_section_title
;
 Ferroelastic Hybrid Bismuth Bromides with Dual Dielectric Switches
;
_journal_name_full               'Chemistry of Materials'
_journal_paper_doi               10.1021/acs.chemmater.1c01699
_journal_year                    2021
_chemical_formula_moiety         '3(C7 N), Bi2 Br9'
_chemical_formula_sum            'C21 Bi2 Br9 N3'
_chemical_formula_weight         1431.39
_space_group_IT_number           63
_space_group_name_Hall           '-C 2c 2'
_space_group_name_H-M_alt        'C m c m'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'C m c m'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5812(7)
_cell_length_b                   17.5448(11)
_cell_length_c                   22.7429(16)
_cell_measurement_reflns_used    2807
_cell_measurement_temperature    143(1)
_cell_measurement_theta_max      27.8660
_cell_measurement_theta_min      2.8480
_cell_volume                     4222.1(5)
_computing_cell_refinement       'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      143(1)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'XtaLAB Synergy R, DW system, HyPix'
_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  0.1121
_diffrn_reflns_av_sigmaI/netI    0.0741
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            12406
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.42
_exptl_absorpt_coefficient_mu    16.854
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.10578
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.252
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2512
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.21
_refine_diff_density_max         9.932
_refine_diff_density_min         -4.975
_refine_diff_density_rms         0.905
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.235
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     105
_refine_ls_number_reflns         2019
_refine_ls_number_restraints     185
_refine_ls_restrained_S_all      1.209
_refine_ls_R_factor_all          0.1729
_refine_ls_R_factor_gt           0.1472
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3071
_refine_ls_wR_factor_ref         0.3209
_reflns_number_gt                1576
_reflns_number_total             2019
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm1c01699_si_008.cif
_cod_data_source_block           TMTBA-143K
_cod_database_code               4004003