Electronic Structure of Ni2E2 Complexes (E = S, Se, Te) and a Global Analysis of M2E2 Compounds: A Case for Quantized E2(n-) Oxidation Levels with n = 2, 3, or 4.
Yao, Shu A.; Martin-Diaconescu, Vlad; Infante, Ivan; Lancaster, Kyle M.; Götz, Andreas W; DeBeer, Serena; Berry, John F.; Journal of the American Chemical Society 137 (2015) 4993–5011; doi:10.1021/ja511607j

data_4123558
_publ_section_title
;
 Electronic Structure of Ni2E2 Complexes (E = S, Se, Te) and a Global
 Analysis of M2E2 Compounds: A Case for Quantized E2(n-) Oxidation Levels
 with n = 2, 3, or 4.
;
_journal_issue                   15
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4993
_journal_page_last               5011
_journal_paper_doi               10.1021/ja511607j
_journal_volume                  137
_journal_year                    2015
_chemical_formula_moiety         'C54 H88 Co Ni2 S2'
_chemical_formula_sum            'C54 H88 Co Ni2 S2'
_chemical_formula_weight         977.71
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 99.84(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.995(4)
_cell_length_b                   11.757(2)
_cell_length_c                   21.175(4)
_cell_measurement_reflns_used    999
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.54
_cell_measurement_theta_min      2.29
_cell_volume                     5149.9(17)
_computing_cell_refinement       'SAINT (Bruker-AXS, 2007)'
_computing_data_collection       'SMART (Bruker-AXS, 2000)'
_computing_data_reduction        'SAINT (Bruker-AXS, 2007)'
_computing_molecular_graphics    'SHELXTL Ver. 6.10'
_computing_publication_material  'SHELXTL Ver. 6.10'
_computing_structure_refinement  'SHELXTL Ver. 6.10'
_computing_structure_solution    'SHELXTL Ver. 6.10 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker CCD-1000 area detector'
_diffrn_measurement_method       '0.30\% \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           Mo-K\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0463
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            129570
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         30.54
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    1.157
_exptl_absorpt_correction_T_max  0.8971
_exptl_absorpt_correction_T_min  0.8119
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
SADABS  (Bruker-AXS, 2003)
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2108
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.453
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     558
_refine_ls_number_reflns         15697
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0404
_refine_ls_R_factor_gt           0.0280
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0252P)^2^+3.2225P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0642
_refine_ls_wR_factor_ref         0.0697
_reflns_number_gt                12893
_reflns_number_total             15697
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja511607j_si_001.cif
_cod_data_source_block           1red
_cod_depositor_comments
'Adding full bibliography for 4123556--4123563.cif.'
_cod_original_cell_volume        5149.9(16)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4123558