Investigation of thermochromic photoluminescent, dielectric and crystal structural properties for an inorganic-organic hybrid solid of [1-hexyl-3-methylimidazolium][PbBr3]
Wan, Kun-Ming; Tong, Yuan-Bo; Li, Li; Zou, Yang; Duan, Hai-Bao; Liu, Jian-Lan; Ren, XiaoMing; New J. Chem. 40 (2016) 8664–8672; doi:10.1039/C6NJ01508E

data_7055742
_publ_section_title
;
 Investigation of thermochromic photoluminescent, dielectric and crystal
 structural properties for an inorganic-organic hybrid solid of
 [1-hexyl-3-methylimidazolium][PbBr3]
;
_journal_issue                   10
_journal_name_full               'New J. Chem.'
_journal_page_first              8664
_journal_page_last               8672
_journal_paper_doi               10.1039/C6NJ01508E
_journal_volume                  40
_journal_year                    2016
_chemical_formula_sum            'C10 H19 Br3 N2 Pb'
_chemical_formula_weight         614.19
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-08-09 deposited with the CCDC.
2016-08-22 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 109.354(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.4561(6)
_cell_length_b                   7.9720(5)
_cell_length_c                   23.0041(12)
_cell_measurement_reflns_used    9983
_cell_measurement_temperature    263(2)
_cell_measurement_theta_max      27.54
_cell_measurement_theta_min      2.98
_cell_volume                     1636.14(17)
_computing_cell_refinement       'Bruker APEXII'
_computing_data_collection       'Bruker APEXII'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      263(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0591
_diffrn_reflns_av_unetI/netI     0.0448
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            21092
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.585
_diffrn_reflns_theta_min         3.171
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    17.619
_exptl_absorpt_correction_T_max  0.172
_exptl_absorpt_correction_T_min  0.020
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.493
_exptl_crystal_description       bulk
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_exptl_transmission_factor_max   0.172
_exptl_transmission_factor_min   0.02
_refine_diff_density_max         2.833
_refine_diff_density_min         -2.348
_refine_diff_density_rms         0.255
_refine_ls_extinction_coef       0.0045(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         3772
_refine_ls_number_restraints     136
_refine_ls_restrained_S_all      2.411
_refine_ls_R_factor_all          0.0682
_refine_ls_R_factor_gt           0.0508
_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^)+(0.0370P)^2^+30.4706P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1095
_refine_ls_wR_factor_ref         0.1196
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3105
_reflns_number_total             3772
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6nj01508e2.cif
_cod_data_source_block           263k
_cod_database_code               7055742
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              80050