Trifluoromethyl order?disorder transition in nickel dithiolene uniform spin chains
Olivier Jeannin; Rodolphe Clérac; Marc Fourmigué; CrystEngComm 9 (2007) 488–; doi:10.1039/b701480e

data_7202745
_publ_section_title
;
 Trifluoromethyl order?disorder transition in nickel dithiolene uniform
 spin chains
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              488
_journal_paper_doi               10.1039/b701480e
_journal_volume                  9
_journal_year                    2007
_chemical_formula_moiety         'C8 H20 N, C8 F6 N2 Ni S4'
_chemical_formula_sum            'C16 H20 F6 N3 Ni S4'
_chemical_formula_weight         555.30
_chemical_name_common            'Et4N+, Ni(tfadt)2-'
_chemical_name_systematic
;
?
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_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                   16.384(3)
_cell_length_b                   7.7447(15)
_cell_length_c                   19.192(4)
_cell_measurement_reflns_used    3225
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      19.5
_cell_measurement_theta_min      1.60
_cell_volume                     2435.3(8)
_computing_cell_refinement       'CELL, Stoe-IPDS'
_computing_data_collection       'EXPOSE, Stoe-IPDS'
_computing_data_reduction        'INTEGRATE, Stoe-IPDS'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 6.66
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  Stoe-IPDS
_diffrn_measurement_method       'oscillation phi incr 1.2 deg'
_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  0.1050
_diffrn_reflns_av_sigmaI/netI    0.0691
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            18225
_diffrn_reflns_theta_full        22.37
_diffrn_reflns_theta_max         22.37
_diffrn_reflns_theta_min         1.63
_exptl_absorpt_coefficient_mu    1.193
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.515
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1132
_exptl_crystal_size_max          0.66
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.361
_refine_diff_density_min         -0.335
_refine_diff_density_rms         0.077
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.793
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         1696
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      0.792
_refine_ls_R_factor_all          0.1686
_refine_ls_R_factor_gt           0.0806
_refine_ls_shift/su_max          0.012
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1758P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2238
_refine_ls_wR_factor_ref         0.2721
_reflns_number_gt                559
_reflns_number_total             1696
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b701480e.txt
_cod_data_source_block           tma_pnma
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               7202745