(C2H5NH3)2BiCl5−xBrx perovskites containing 1D chains: effect of Br substitution on their structural and optical properties
Pradhan, Abinash; Sahoo, Sanand; Samal, Saroj L.; CrystEngComm 26 (2024) 312–323; doi:10.1039/D3CE01019H

data_7247807
_publ_section_title
;
 (C2H5NH3)2BiCl5&#x2212;xBrx perovskites containing 1D chains: effect of
 Br substitution on their structural and optical properties
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              312
_journal_page_last               323
_journal_paper_doi               10.1039/D3CE01019H
_journal_volume                  26
_journal_year                    2024
_chemical_formula_moiety         'Bi Br1.188 Cl3.812, C4 H16 N2'
_chemical_formula_sum            'C4 H16 Bi Br1.18 Cl3.82 N2'
_chemical_formula_weight         531.05
_space_group_crystal_system      orthorhombic
_space_group_IT_number           64
_space_group_name_Hall           '-C 2ac 2'
_space_group_name_H-M_alt        'C m c e'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2023-06-01
_audit_creation_method
;
Olex2 1.5-alpha
(compiled 2021.06.29 svn.r12e2184c for OlexSys, GUI svn.r6374)
;
_audit_update_record
;
2023-10-09 deposited with the CCDC.	2023-12-01 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   7.6366(2)
_cell_length_b                   22.1176(8)
_cell_length_c                   17.8909(5)
_cell_measurement_reflns_used    4550
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.0120
_cell_measurement_theta_min      1.8340
_cell_volume                     3021.83(16)
_computing_cell_refinement       'CrysAlisPro 1.171.41.93a (Rigaku OD, 2020)'
_computing_data_collection       'CrysAlisPro 1.171.41.93a (Rigaku OD, 2020)'
_computing_data_reduction        'CrysAlisPro 1.171.41.93a (Rigaku OD, 2020)'
_computing_molecular_graphics    'Olex2 1.5-alpha (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5-alpha (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'Hybrid Pixel Array Detector'
_diffrn_detector_area_resol_mean 10.0000
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.961
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w     14.00  39.00   0.50  163.05    --   10.00  47.00  25.00   50
  2  \w    -42.00 -17.00   0.50  163.05    --   10.00 -47.00-124.00   50
  3  \w      5.00  30.00   0.50  163.05    --  -10.20  47.00  25.00   50
  4  \w    -63.00 -38.00   0.50  163.05    --  -10.20 -47.00-124.00   50
  5  \w     41.00  67.00   0.50  163.05    --   10.00  77.00  90.00   52
  6  \w    -11.00  15.00   0.50  163.05    --   10.00  77.00-180.00   52
  7  \w     48.00  99.00   0.50  163.05    --   10.00  77.00-180.00  102
  8  \w    -63.00  47.00   0.50  163.05    --   10.00 -38.00  60.00  220
  9  \w     39.00  70.00   0.50  163.05    --   10.00  77.00-120.00   62
 10  \w    -11.00  23.50   0.50  163.05    --   10.00  77.00  90.00   69
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Pro II AFC12 (RINC): Kappa single'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0349614000
_diffrn_orient_matrix_UB_12      -0.0295378000
_diffrn_orient_matrix_UB_13      -0.0040745000
_diffrn_orient_matrix_UB_21      0.0417812000
_diffrn_orient_matrix_UB_22      -0.0027058000
_diffrn_orient_matrix_UB_23      -0.0352577000
_diffrn_orient_matrix_UB_31      0.0752308000
_diffrn_orient_matrix_UB_32      -0.0121907000
_diffrn_orient_matrix_UB_33      0.0176646000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0435
_diffrn_reflns_av_unetI/netI     0.0452
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.961
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            9731
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.961
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.031
_diffrn_reflns_theta_min         1.841
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'Rigaku (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    15.440
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.18276
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.93a (Rigaku Oxford Diffraction, 2020)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_density_diffrn    2.335
_exptl_crystal_description       crystalline
_exptl_crystal_F_000             1946
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.075
_refine_diff_density_min         -0.660
_refine_diff_density_rms         0.136
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.975
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     79
_refine_ls_number_reflns         1719
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      0.970
_refine_ls_R_factor_all          0.0627
_refine_ls_R_factor_gt           0.0351
_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^)+(0.0379P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0668
_refine_ls_wR_factor_ref         0.0719
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1241
_reflns_number_total             1719
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ce01019h2.cif
_cod_data_source_block           ab259d_070222
_cod_depositor_comments
'Adding full bibliography for 7247803--7247812.cif.'
_cod_original_sg_symbol_Hall     '-C 2bc 2'
_cod_database_code               7247807
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         (C2H5NH3)2BiCl4Br
_reflns_odcompleteness_completeness 99.72
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups, All N(H,H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Shared sites
{Cl4, Br4}
{Cl2, Br2}
{Cl1, Br1}
{Cl3, Br3}
3. Uiso/Uaniso restraints and constraints
N1 \\sim C2 \\sim C1: within 2A with sigma of 0.02 and sigma for terminal atoms
of 0.04 within 2A
Uanis(Cl4) = Uanis(Br4)
Uanis(Cl2) = Uanis(Br2)
Uanis(Cl1) = Uanis(Br1)
Uanis(Cl3) = Uanis(Br3)
4. Rigid body (RIGU) restrains
 N1, C2, C1
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
5. Others
 Sof(Br4)=0.5*(1-FVAR(2))
 Sof(Cl4)=0.5*FVAR(2)
 Sof(Br2)=0.5*(1-FVAR(3))
 Sof(Cl2)=0.5*FVAR(3)
 Sof(Br1)=1-FVAR(3)
 Sof(Cl1)=FVAR(3)
 Sof(Br3)=0.5*(1-FVAR(5))
 Sof(Cl3)=0.5*FVAR(5)
 Fixed Sof: H2B(0.5) H2C(0.5) H3B(0.5) H3C(0.5) H4A(0.5) H4B(0.5) N1(0.5)
 H1A(0.5) H1B(0.5) H1C(0.5) C2(0.5) H2D(0.5) H2E(0.5) C1(0.5) H1D(0.5) H1E(0.5)
 H1F(0.5)
6.a Free rotating group:
 N1(C2,C1)
6.b Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B), C2(H2D,H2E)
6.c Me refined with riding coordinates:
 N2(H2A,H2B,H2C), C3(H3A,H3B,H3C), N1(H1A,H1B,H1C), C1(H1D,H1E,H1F)
;
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 3.998
_oxdiff_exptl_absorpt_empirical_full_min 0.533