Synthesis, Structures, and Some Properties of Diiron Oxadiselenolate (ODSe) and Thiodiselenolate (TDSe) Complexes as Models for the Active Site of [FeFe]-Hydrogenases
Song, Li-Cheng; Gai, Bin; Feng, Zhan-Heng; Du, Zong-Qiang; Xie, Zhao-Jun; Sun, Xiao-Jing; Song, Hai-Bin; Organometallics 32 (2013) 3673–; doi:10.1021/om400309j

data_4080977
_publ_section_title
;
 Synthesis, Structures, and Some Properties of Diiron Oxadiselenolate
 (ODSe) and Thiodiselenolate (TDSe) Complexes as Models for the Active
 Site of [FeFe]-Hydrogenases
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              3673
_journal_paper_doi               10.1021/om400309j
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C8.50 H5 Cl Fe2 O7 S Se2'
_chemical_formula_sum            'C8.5 H5 Cl Fe2 O7 S Se2'
_chemical_formula_weight         556.26
_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                 97.437(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   31.221(3)
_cell_length_b                   6.9310(10)
_cell_length_c                   29.758(3)
_cell_measurement_reflns_used    7582
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.90
_cell_measurement_theta_min      1.40
_cell_volume                     6385.2(13)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 r2'
_computing_data_collection
'CrystalClear-SM Expert 2.0 r2 (Rigaku, 2009)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 r2'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku Saturn724 CCD camera'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  mulitlayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0469
_diffrn_reflns_av_sigmaI/netI    0.0624
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            21073
_diffrn_reflns_theta_full        27.87
_diffrn_reflns_theta_max         27.87
_diffrn_reflns_theta_min         1.32
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.700
_exptl_absorpt_correction_T_max  0.3785
_exptl_absorpt_correction_T_min  0.2747
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.315
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4240
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.051
_refine_diff_density_min         -0.938
_refine_diff_density_rms         0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.210
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     466
_refine_ls_number_reflns         7572
_refine_ls_number_restraints     90
_refine_ls_restrained_S_all      1.213
_refine_ls_R_factor_all          0.0689
_refine_ls_R_factor_gt           0.0574
_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^)+(0.0021P)^2^+54.4791P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0857
_refine_ls_wR_factor_ref         0.0907
_reflns_number_gt                6643
_reflns_number_total             7572
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400309j_si_003.cif
_cod_data_source_block           10
_cod_original_formula_sum        'C8.50 H5 Cl Fe2 O7 S Se2'
_cod_database_code               4080977