Di/mono-nuclear iron(I)/(II) complexes as functional models for the 2Fe2S subunit and distal Fe moiety of the active site of [FeFe] hydrogenases: protonations, molecular structures and electrochemical properties.
Gao, Shang; Fan, Jiangli; Sun, Shiguo; Song, Fengling; Peng, Xiaojun; Duan, Qian; Jiang, Dayong; Liang, Qingcheng; Dalton transactions (Cambridge, England : 2003) 41 (2012) 12064–12074; doi:10.1039/c2dt30934c

data_7020184
_publ_section_title
;
 Di/mono-nuclear iron(I)/(II) complexes as functional models for the 2Fe2S
 subunit and distal Fe moiety of the active site of [FeFe] hydrogenases:
 protonations, molecular structures and electrochemical properties.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12064
_journal_page_last               12074
_journal_paper_doi               10.1039/c2dt30934c
_journal_volume                  41
_journal_year                    2012
_chemical_formula_iupac          '[Fe (C4 H2 N2 S2) (C3 H9 P)2 (C O)2]'
_chemical_formula_moiety         'C12 H20 Fe N2 O2 P2 S2'
_chemical_formula_sum            'C12 H20 Fe N2 O2 P2 S2'
_chemical_formula_weight         406.21
_chemical_name_systematic
;
Dicarbonyl(pyrazine-1,3-dithiolato-
\k^2^<i>S</i>,<i>S</i>')bis(trimethylphosphane-\k<i>P</i>)iron(II)
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.2078(10)
_cell_length_b                   11.9510(10)
_cell_length_c                   25.326(2)
_cell_measurement_reflns_used    9947
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.32
_cell_volume                     3694.9(5)
_computing_cell_refinement       'SAINT-Plus (Bruker, 2001)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT-Plus (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEXII CCD area-detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0248
_diffrn_reflns_av_sigmaI/netI    0.0193
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            18679
_diffrn_reflns_theta_full        25.98
_diffrn_reflns_theta_max         25.98
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    1.219
_exptl_absorpt_correction_T_max  0.7926
_exptl_absorpt_correction_T_min  0.7113
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.460
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1680
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.298
_refine_diff_density_min         -0.560
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         3628
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.094
_refine_ls_R_factor_all          0.0348
_refine_ls_R_factor_gt           0.0288
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0363P)^2^+1.1092P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0696
_refine_ls_wR_factor_ref         0.0727
_reflns_number_gt                3166
_reflns_number_total             3628
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            c2dt30934c.txt
_cod_data_source_block           I
_cod_database_code               7020184