Harnessing Scorpionate Ligand Equilibria for Modeling Reduced Nickel Superoxide Dismutase Intermediates
Huaibo Ma; Swarup Chattopadhyay; Jeffrey L. Petersen; Michael P. Jensen; Inorganic Chemistry 47 (2008) 7966–7968; doi:10.1021/ic801099r

data_4306186
_publ_section_title
;
Harnessing Scorpionate Ligand Equilibria for Modeling Reduced Nickel
Superoxide Dismutase Intermediates
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7966
_journal_page_last               7968
_journal_paper_doi               10.1021/ic801099r
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C44 H39.5 B N7.5 Ni S2'
_chemical_formula_weight         806.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 92.636(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   37.626(2)
_cell_length_b                   9.7449(6)
_cell_length_c                   22.6279(15)
_cell_measurement_reflns_used    8500
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.38
_cell_volume                     8288.0(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_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  0.0363
_diffrn_reflns_av_sigmaI/netI    0.0415
_diffrn_reflns_limit_h_max       48
_diffrn_reflns_limit_h_min       -48
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            27803
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         2.15
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.610
_exptl_absorpt_correction_type   semi-empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             3368
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.404
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     561
_refine_ls_number_reflns         9251
_refine_ls_number_restraints     14
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0553
_refine_ls_R_factor_gt           0.0372
_refine_ls_shift/su_max          0.020
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0510P)^2^+3.5167P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0940
_refine_ls_wR_factor_ref         0.1096
_reflns_number_gt                7111
_reflns_number_total             9251
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801099r_si_001.cif
_cod_data_source_block           mj4ccd
_cod_original_formula_sum        'C44 H39.50 B N7.50 Ni S2'
_cod_database_code               4306186