Small Cyclic Diammonium Cation Templated (110)-Oriented 2D Halide (X = I, Br, Cl) Perovskites with White-Light Emission
Li, Xiaotong; Guo, Peijun; Kepenekian, Mikaël; Hadar, Ido; Katan, Claudine; Even, Jacky; Stoumpos, Constantinos C.; Schaller, Richard D.; Kanatzidis, Mercouri G.; Chemistry of Materials 31 (2019) 3582–; doi:10.1021/acs.chemmater.9b01511

data_4002904
_publ_section_title
;
 Small Cyclic Diammonium Cation Templated (110)-Oriented 2D Halide (X = I,
 Br, Cl) Perovskites with White-Light Emission
;
_journal_issue                   9
_journal_name_full               'Chemistry of Materials'
_journal_page_first              3582
_journal_paper_doi               10.1021/acs.chemmater.9b01511
_journal_volume                  31
_journal_year                    2019
_chemical_formula_sum            'C4 H12 Br4 N2 Pb'
_chemical_formula_weight         615
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 90.563(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.2763(3)
_cell_length_b                   20.4600(9)
_cell_length_c                   9.6935(4)
_cell_measurement_reflns_used    2257
_cell_measurement_temperature    250
_cell_measurement_theta_max      30.11
_cell_measurement_theta_min      1.99
_cell_volume                     1244.71(10)
_diffrn_ambient_temperature      250
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Bruker CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0602
_diffrn_reflns_av_unetI/netI     0.0296
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            36153
_diffrn_reflns_theta_full        30.11
_diffrn_reflns_theta_max         30.11
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    26.349
_exptl_absorpt_correction_T_max  0.6134
_exptl_absorpt_correction_T_min  0.0561
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   APEX-3
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    3.2816
_exptl_crystal_description       'rectangular plate'
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.354
_exptl_crystal_size_mid          0.066
_exptl_crystal_size_min          0.027
_refine_diff_density_max         1.13
_refine_diff_density_min         -1.51
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_gt    2.20
_refine_ls_goodness_of_fit_ref   2.15
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_constraints    53
_refine_ls_number_parameters     65
_refine_ls_number_reflns         2257
_refine_ls_number_restraints     6
_refine_ls_R_factor_all          0.0314
_refine_ls_R_factor_gt           0.0288
_refine_ls_shift/su_max          0.0407
_refine_ls_shift/su_mean         0.0061
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/(\s^2^(I)+0.0004I^2^)
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0820
_refine_ls_wR_factor_ref         0.0826
_reflns_number_gt                2113
_reflns_number_total             2257
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cm9b01511_si_005.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_diffrn_radiation_probe' value 'X-ray' changed to 'x-ray' according
to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 4002903--4002906.cif.
;
_cod_original_sg_symbol_Hall     '-P 2ycb'
_cod_original_formula_sum        'C4 H12 Br4 N2 Pb1'
_cod_database_code               4002904