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_4080978
_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_sum            'C8 H4 Fe2 O7 Se2'
_chemical_formula_weight         481.73
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 110.67(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.8642(14)
_cell_length_b                   13.424(3)
_cell_length_c                   7.7612(16)
_cell_measurement_reflns_used    2364
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.8985
_cell_measurement_theta_min      2.8048
_cell_volume                     669.1(3)
_computing_cell_refinement       crystalclear
_computing_data_collection       crystalclear
_computing_data_reduction        crystalclear
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'rigaku saturn'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1709
_diffrn_reflns_av_sigmaI/netI    0.1781
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5523
_diffrn_reflns_theta_full        27.84
_diffrn_reflns_theta_max         27.84
_diffrn_reflns_theta_min         2.81
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    7.629
_exptl_absorpt_correction_T_max  0.5159
_exptl_absorpt_correction_T_min  0.3107
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_density_diffrn    2.391
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             456
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.472
_refine_diff_density_min         -1.942
_refine_diff_density_rms         0.314
_refine_ls_extinction_coef       0.0436(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.712
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     98
_refine_ls_number_reflns         1643
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      0.710
_refine_ls_R_factor_all          0.0549
_refine_ls_R_factor_gt           0.0445
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0876
_refine_ls_wR_factor_ref         0.0896
_reflns_number_gt                1217
_reflns_number_total             1643
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400309j_si_003.cif
_cod_data_source_block           A
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        669.1(2)
_cod_original_sg_symbol_H-M      P2(1)/m
_cod_database_code               4080978