A Sulfido-Bridged Diiron(II) Compound and Its Reactions with Nitrogenase-Relevant Substrates
Javier Vela; Sebastian Stoian; Christine J. Flaschenriem; Eckard Münck; Patrick L. Holland; Journal of the American Chemical Society 126 (2004) 4522–4523; doi:10.1021/ja049417l

data_4112425
_publ_section_title
;
 A Sulfido-Bridged Diiron(II) Compound and Its Reactions with
 Nitrogenase-Relevant Substrates
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4522
_journal_page_last               4523
_journal_paper_doi               10.1021/ja049417l
_journal_volume                  126
_journal_year                    2004
_chemical_formula_sum            'C58 H82 Fe2 N4 S'
_chemical_formula_weight         979.04
_chemical_name_common            holjv21
_chemical_name_systematic
;
 bis(diketiminate)mu-sulfidodiiron(ii) 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                87.8870(10)
_cell_angle_beta                 78.3460(10)
_cell_angle_gamma                77.7450(10)
_cell_formula_units_Z            1
_cell_length_a                   9.1867(4)
_cell_length_b                   13.3083(6)
_cell_length_c                   13.6383(7)
_cell_measurement_reflns_used    7797
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      28.3
_cell_measurement_theta_min      2.7
_cell_volume                     1595.79(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.913
_diffrn_measured_fraction_theta_max 0.913
_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  0.0117
_diffrn_reflns_av_sigmaI/netI    0.0265
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            10329
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.19
_exptl_absorpt_coefficient_mu    0.521
_exptl_absorpt_correction_T_max  0.928
_exptl_absorpt_correction_T_min  0.842
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.019
_exptl_crystal_description       block
_exptl_crystal_F_000             526
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.18
_refine_diff_density_max         2.936
_refine_diff_density_min         -0.338
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     298
_refine_ls_number_reflns         7228
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0828
_refine_ls_R_factor_gt           0.0750
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1305P)^2^+2.3990P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2165
_refine_ls_wR_factor_ref         0.2233
_reflns_number_gt                6332
_reflns_number_total             7228
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja049417lsi20040202_112433_1.cif
_cod_data_source_block           1
_cod_database_code               4112425