A {Cu2I3−}∞ Chain Hybrid with Two-step Phase Transition, Switchable Dielectrics, Thermochromism and Piezochromism
Li, Qing-Qing; Pan, Xue-Wei; Zhai, Lu; Zhang, Jin; Ren, Xiaoming; Dalton Transactions  (2023) –; doi:10.1039/D3DT00650F

data_7712629
_publ_section_title
;
 A {Cu2I3&#x2212;}\\infty Chain Hybrid with Two-step Phase Transition,
 Switchable Dielectrics, Thermochromism and Piezochromism
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D3DT00650F
_journal_year                    2023
_chemical_formula_sum            'C5 H14 Cu2 I3 N'
_chemical_formula_weight         595.95
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2022-10-29 deposited with the CCDC.	2023-03-15 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.641(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.3123(6)
_cell_length_b                   17.2607(14)
_cell_length_c                   9.8344(8)
_cell_measurement_temperature    360(2)
_cell_volume                     1406.38(19)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      360(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.992
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0395
_diffrn_reflns_av_unetI/netI     0.0328
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            10245
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.371
_diffrn_reflns_theta_min         2.727
_exptl_absorpt_coefficient_mu    9.567
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.815
_exptl_crystal_F_000             1072
_refine_diff_density_max         1.869
_refine_diff_density_min         -0.872
_refine_diff_density_rms         0.153
_refine_ls_extinction_coef       0.0027(6)
_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   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     105
_refine_ls_number_reflns         2855
_refine_ls_number_restraints     81
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0911
_refine_ls_R_factor_gt           0.0586
_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^)+(0.0708P)^2^+8.9426P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1535
_refine_ls_wR_factor_ref         0.1779
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1808
_reflns_number_total             2855
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3dt00650f2.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7712629
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              3586
_shelx_hkl_checksum              69184