Multiple structural transformations coupled with switchable magnetic and dielectric responses in an amphidynamic crystal of 4'-tert-butylbenzylpyridinium bis(maleonitriledithiolate)nickelate
Wei-Hua Ning; Lu Zhai; Jian-Lan Liu; Xiao-Ming Ren; Katsuya Ichihashi; Sadafumi Nishihara; Katsuya Inoue; Journal of Materials Chemistry C 3 (2015) 7906–7915; doi:10.1039/C5TC00676G

data_7234370
_publ_section_title
;
 Multiple structural transformations coupled with switchable magnetic and
 dielectric responses in an amphidynamic crystal of
 4'-tert-butylbenzylpyridinium bis(maleonitriledithiolate)nickelate
;
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              7906
_journal_page_last               7915
_journal_paper_doi               10.1039/C5TC00676G
_journal_volume                  3
_journal_year                    2015
_chemical_formula_sum            'C24 H20 N5 Ni S4'
_chemical_formula_weight         565.38
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                74.657(3)
_cell_angle_beta                 79.235(3)
_cell_angle_gamma                84.044(3)
_cell_formula_units_Z            12
_cell_length_a                   12.5916(5)
_cell_length_b                   24.3127(9)
_cell_length_c                   26.5376(9)
_cell_measurement_temperature    170(2)
_cell_volume                     7684.0(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      170(2)
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0455
_diffrn_reflns_av_sigmaI/netI    0.0657
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            50977
_diffrn_reflns_theta_full        70.91
_diffrn_reflns_theta_max         70.91
_diffrn_reflns_theta_min         3.54
_exptl_absorpt_coefficient_mu    4.322
_exptl_absorpt_correction_T_max  0.523
_exptl_absorpt_correction_T_min  0.408
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.466
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3492.0
_exptl_crystal_preparation       'Magnetic properties'
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: '
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.773
_refine_diff_density_min         -0.928
_refine_diff_density_rms         0.142
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.883
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1837
_refine_ls_number_reflns         28948
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.883
_refine_ls_R_factor_all          0.0861
_refine_ls_R_factor_gt           0.0615
_refine_ls_shift/su_max          0.049
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1223P)^2^+5.5321P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1617
_refine_ls_wR_factor_ref         0.1913
_reflns_number_gt                20818
_reflns_number_total             28948
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            J-Mater-Chem-C-2015-3-7906.cif
_cod_data_source_block           3
_cod_database_code               7234370