Ultra-stable 2D layered methylammonium cadmium trihalide perovskite photoelectrodes
Hsu, Hsien-Yi; Ji, Li; Zhang, Chengxi; Mak, Chun Hong; Liu, Rugeng; Wang, Tie; Zou, Xingli; Leu, Shao-Yuan; Yu, Edward T.; Journal of Materials Chemistry C 6 (2018) 11552–; doi:10.1039/C8TC02153H

data_7237341
_publ_section_title
;
 Ultra-stable 2D layered methylammonium cadmium trihalide perovskite
 photoelectrodes
;
_journal_issue                   43
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              11552
_journal_paper_doi               10.1039/C8TC02153H
_journal_volume                  6
_journal_year                    2018
_chemical_formula_moiety         'C H12 Cd3 Cl7 N O3'
_chemical_formula_sum            'C H12 Cd3 Cl7 N O3'
_chemical_formula_weight         671.47
_space_group_crystal_system      monoclinic
_space_group_IT_number           11
_space_group_name_Hall           '-P 2yb'
_space_group_name_H-M_alt        'P 1 21/m 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2018-05-02 deposited with the CCDC.
2018-09-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.922(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.7315(4)
_cell_length_b                   15.9916(9)
_cell_length_c                   6.9266(4)
_cell_measurement_reflns_used    3451
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.9
_cell_measurement_theta_min      2.54
_cell_volume                     745.53(7)
_computing_cell_refinement       'Apex II release 2010, Bruker AXS, Inc.'
_computing_data_collection       'Apex II release 2010, Bruker AXS, Inc.'
_computing_data_reduction        'Apex II release 2010, Bruker AXS, Inc.'
_computing_molecular_graphics    'XP SHELXTL/PC, Siemens Analytical'
_computing_publication_material  'SHELXL-2016/6, Sheldrick, G. M.'
_computing_structure_refinement  'Shelxl-2016/6, Sheldrick, G. M.'
_computing_structure_solution
;

Sheldrick, G. M. (2015).  SHELXT.  Acta Cryst. A71, 3-8.

;
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
'Nonius Kappa CCD with Bruker Apex II detector'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0378
_diffrn_reflns_av_unetI/netI     0.0314
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7589
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.961
_diffrn_reflns_theta_min         2.547
_diffrn_source                   'fine focus sealed tube'
_exptl_absorpt_coefficient_mu    5.479
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.646
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS. G. M. Sheldrick.  Apex II release 2010, Bruker AXS, Inc.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.991
_exptl_crystal_description       needle
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.490
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.594
_refine_diff_density_min         -0.590
_refine_diff_density_rms         0.144
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     91
_refine_ls_number_reflns         1841
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0238
_refine_ls_R_factor_gt           0.0192
_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^)+(0.0081P)^2^+0.4696P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0405
_refine_ls_wR_factor_ref         0.0424
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1632
_reflns_number_total             1841
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8tc02153h2.cif
_cod_data_source_block           shelx
_cod_original_sg_symbol_H-M      'P 21/m'
_cod_database_code               7237341
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.174
_shelx_estimated_absorpt_t_max   0.771
_shelx_res_checksum              54045