Direct Band Gap Mixed-Valence Organic‒inorganic Gold Perovskite as Visible Light Absorbers
Ghosh, Biplab; Febriansyah, Benny; Harikesh, Padinhare Cholakkal; Koh, Teck Ming; Hadke, Shreyash; Wong, Lydia H.; England, Jason; Mhaisalkar, Subodh G.; Mathews, Nripan; Chemistry of Materials  (2020) –; doi:10.1021/acs.chemmater.0c00345

data_4003642
_publ_section_title
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 Direct Band Gap Mixed-Valence Organic--inorganic Gold Perovskite as
 Visible Light Absorbers
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_journal_name_full               'Chemistry of Materials'
_journal_paper_doi               10.1021/acs.chemmater.0c00345
_journal_year                    2020
_chemical_formula_sum            'C H6 Au Br3 N'
_chemical_formula_weight         468.76
_space_group_crystal_system      tetragonal
_space_group_IT_number           92
_space_group_name_Hall           'P 4abw 2nw'
_space_group_name_H-M_alt        'P 41 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   7.9115(10)
_cell_length_b                   7.9115(10)
_cell_length_c                   23.385(3)
_cell_measurement_reflns_used    6715
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      39.3547
_cell_measurement_theta_min      3.1089
_cell_volume                     1463.7(3)
_computing_cell_refinement       'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_data_collection       'APEX3 (Bruker AXS Inc., 2018)'
_computing_data_reduction        'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_molecular_graphics    'XP (Bruker AXS Inc., 2018)'
_computing_publication_material  'APEX3 (Bruker AXS Inc., 2018)'
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'XT, VERSION 2014/5'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 7.4074
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Photon II CPADs detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Multilayer Mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0604
_diffrn_reflns_av_unetI/netI     0.0449
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            23001
_diffrn_reflns_theta_full        39.38
_diffrn_reflns_theta_max         39.38
_diffrn_reflns_theta_min         2.72
_diffrn_source                   'Incoatec microfocus source'
_diffrn_source_type              'Bruker D8 Quest'
_exptl_absorpt_coefficient_mu    36.366
_exptl_absorpt_correction_T_max  0.53
_exptl_absorpt_correction_T_min  0.22
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    4.254
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1624
_exptl_crystal_size_max          0.140
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.020
_refine_diff_density_max         1.671
_refine_diff_density_min         -1.796
_refine_ls_abs_structure_details
;

Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.50(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     60
_refine_ls_number_reflns         4363
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0526
_refine_ls_R_factor_gt           0.0292
_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^)+(0.0129P)^2^+0.8383P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0509
_refine_ls_wR_factor_ref         0.0574
_reflns_number_gt                3284
_reflns_number_total             4363
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cm0c00345_si_003.cif
_cod_data_source_block           je569m
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-Scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_cell_volume        1463.7(4)
_cod_database_code               4003642
_shelx_res_checksum              41105
_shelx_hkl_checksum              20936