Negative/Zero Thermal Quenching of Luminescence <i>via</i> Electronic Structural Transition in Copper-Iodide Cluster-Based Coordination Networks.
Li, Miao; Cheng, Zhiqiang; Wang, Xiaoling; Yu, Zongsu; Zhou, Mingren; Miao, Huixian; Zhaxi, Wenjiang; Huang, Wei; Ma, Xiao; Chen, Qun; Jiang, Shenlong; Zhang, Qun; Wu, Dayu; The journal of physical chemistry letters 12 (2021) 8237–8245; doi:10.1021/acs.jpclett.1c02426

data_8000538
_publ_section_title
;
 Negative/Zero Thermal Quenching of Luminescence <i>via</i> Electronic
 Structural Transition in Copper-Iodide Cluster-Based Coordination
 Networks.
;
_journal_issue                   34
_journal_name_full               'The journal of physical chemistry letters'
_journal_page_first              8237
_journal_page_last               8245
_journal_paper_doi               10.1021/acs.jpclett.1c02426
_journal_volume                  12
_journal_year                    2021
_chemical_formula_sum            'C8 H6 Cu I N3 O0.5'
_chemical_formula_weight         342.60
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 95.248(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   30.4140(8)
_cell_length_b                   4.19600(10)
_cell_length_c                   14.4536(3)
_cell_measurement_reflns_used    6947
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      28.9900
_cell_measurement_theta_min      2.6630
_cell_volume                     1836.80(8)
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'ROD, Synergy Custom DW system, HyPix'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0295
_diffrn_reflns_av_unetI/netI     0.0119
_diffrn_reflns_Laue_measured_fraction_full 0.973
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -36
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            19028
_diffrn_reflns_point_group_measured_fraction_full 0.973
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         24.992
_diffrn_reflns_theta_min         2.690
_exptl_absorpt_coefficient_mu    5.697
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.57847
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.64a (Rigaku Oxford Diffraction, 2020)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    2.478
_exptl_crystal_description       needle
_exptl_crystal_F_000             1288
_refine_diff_density_max         0.537
_refine_diff_density_min         -0.637
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     123
_refine_ls_number_reflns         1600
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0208
_refine_ls_R_factor_gt           0.0200
_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^)+(0.0302P)^2^+4.9950P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0535
_refine_ls_wR_factor_ref         0.0539
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1548
_reflns_number_total             1600
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jz1c02426_si_011.cif
_cod_data_source_block           2@300K
_cod_original_cell_volume        1836.79(8)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_original_formula_sum        'C8 H6 Cu I N3 O0.50'
_cod_database_code               8000538
_shelxl_version_number           2014/6
_shelx_res_checksum              17556
_shelx_hkl_checksum              85473