Two Ongoing Magnetic Transitions Originating from Spin-Peierls Dimerization and Cation Orientation Transformation in an S = 1/2 Spin Chain System
Qian, Yin; Yao, Wan-Wan; Shao, Dong-Sheng; Zhang, Jin; Ren, Xiao-Ming; The Journal of Physical Chemistry C  (2021) –; doi:10.1021/acs.jpcc.1c04863

data_1564304
_publ_section_title
;
 Two Ongoing Magnetic Transitions Originating from Spin-Peierls
 Dimerization and Cation Orientation Transformation in an S = 1/2 Spin
 Chain System
;
_journal_name_full               'The Journal of Physical Chemistry C'
_journal_paper_doi               10.1021/acs.jpcc.1c04863
_journal_year                    2021
_chemical_formula_sum            'C14 H14 N5 Ni S4'
_chemical_formula_weight         439.25
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.3949(8)
_cell_length_b                   6.9372(3)
_cell_length_c                   19.6112(11)
_cell_measurement_reflns_used    4663
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.29
_cell_measurement_theta_min      2.51
_cell_volume                     1958.38(18)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0684
_diffrn_reflns_av_sigmaI/netI    0.0540
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            19362
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         2.51
_exptl_absorpt_coefficient_mu    1.423
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.490
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             900
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.275
_refine_diff_density_min         -0.375
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.173
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     141
_refine_ls_number_reflns         2430
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.173
_refine_ls_R_factor_all          0.1205
_refine_ls_R_factor_gt           0.0544
_refine_ls_shift/su_max          1.821
_refine_ls_shift/su_mean         0.029
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0584P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1128
_refine_ls_wR_factor_ref         0.1310
_reflns_number_gt                1383
_reflns_number_total             2430
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp1c04863_si_003.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               1564304