[CpNi(dithiolene)] (and diselenolene) neutral radical complexes.
Nomura, Mitsushiro; Cauchy, Thomas; Geoffroy, Michel; Adkine, Prashant; Fourmigué, Marc; Inorganic chemistry 45 (2006) 8194–8204; doi:10.1021/ic0608546

data_4350421
_publ_section_title
;
 [CpNi(dithiolene)] (and diselenolene) neutral radical complexes.
;
_journal_issue                   20
_journal_name_full               'Inorganic chemistry'
_journal_page_first              8194
_journal_page_last               8204
_journal_paper_doi               10.1021/ic0608546
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C9 H9 Ni S2 Se2'
_chemical_formula_weight         397.91
_chemical_name_common            CpNi(ddds)
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21 1'
_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                 105.827(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.2009(8)
_cell_length_b                   20.963(2)
_cell_length_c                   12.6630(11)
_cell_measurement_reflns_used    8000
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.95
_cell_measurement_theta_min      1.95
_cell_volume                     2349.8(4)
_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 0.934
_diffrn_measured_fraction_theta_max 0.934
_diffrn_measurement_device_type  Stoe-IPDS
_diffrn_measurement_method       'oscillation, phi incr 1.1 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  0.0446
_diffrn_reflns_av_sigmaI/netI    0.0639
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            18689
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.93
_exptl_absorpt_coefficient_mu    8.158
_exptl_absorpt_correction_T_max  0.7309
_exptl_absorpt_correction_T_min  0.1561
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'FACEIT, Stoe-IPDS'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1528
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.584
_refine_diff_density_min         -0.543
_refine_diff_density_rms         0.125
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.060(19)
_refine_ls_extinction_coef       0.00222(14)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.945
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     506
_refine_ls_number_reflns         8585
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.944
_refine_ls_R_factor_all          0.0681
_refine_ls_R_factor_gt           0.0365
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0470P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0796
_refine_ls_wR_factor_ref         0.0935
_reflns_number_gt                5867
_reflns_number_total             8585
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0608546si20060517_102208.cif
_cod_data_source_block           mn34
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4350421