An inorganic-organic hybrid crystal with a two-step dielectric response and thermochromic luminescence.
Duan, Hai-Bao; Yu, Shan-Shan; Liu, Shao-Xian; Zhang, Hui; Dalton transactions (Cambridge, England : 2003) 46 (2017) 2220–2227; doi:10.1039/c6dt03691k

data_7041761
_publ_section_title
;
 An inorganic-organic hybrid crystal with a two-step dielectric response
 and thermochromic luminescence.
;
_journal_issue                   7
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2220
_journal_page_last               2227
_journal_paper_doi               10.1039/c6dt03691k
_journal_volume                  46
_journal_year                    2017
_chemical_formula_moiety         'C7 H11 I3 N2 Pb'
_chemical_formula_sum            'C7 H11 I3 N2 Pb'
_chemical_formula_weight         711.07
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-01-15 deposited with the CCDC.
2017-01-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.8530(15)
_cell_length_b                   10.418(2)
_cell_length_c                   18.343(4)
_cell_measurement_reflns_used    6350
_cell_measurement_temperature    350(2)
_cell_measurement_theta_max      25.7823
_cell_measurement_theta_min      2.4635
_cell_volume                     1500.7(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      350(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.5734
_diffrn_reflns_av_unetI/netI     0.1456
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            15166
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         2.822
_exptl_absorpt_coefficient_mu    17.384
_exptl_absorpt_correction_T_max  0.240
_exptl_absorpt_correction_T_min  0.130
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v.2.10 (Bruker,2003)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    3.147
_exptl_crystal_description       needle
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         4.040
_refine_diff_density_min         -2.370
_refine_diff_density_rms         0.463
_refine_ls_extinction_coef       0.0034(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     71
_refine_ls_number_reflns         1403
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0842
_refine_ls_R_factor_gt           0.0729
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1074P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1928
_refine_ls_wR_factor_ref         0.2016
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1102
_reflns_number_total             1403
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6dt03691k2.cif
_cod_data_source_block           15
_cod_depositor_comments
'Adding full bibliography for 7041760--7041764.cif.'
_cod_original_cell_volume        1500.6(5)
_cod_database_code               7041761
_shelx_shelxl_version_number     2014/7
_structure_special_details
;
 This structure is part of a multi-temperature experiment.
;
_shelx_res_checksum              24776