Preparation and Characterization of Homologous Diiron Dithiolato, Diselenato, and Ditellurato Complexes: [FeFe]-Hydrogenase Models
Harb, Mohammad K.; Apfel, Ulf-Peter; Kübel, Joachim; Görls, Helmar; Felton, Greg A. N.; Sakamoto, Taka; Evans, Dennis H.; Glass, Richard S.; Lichtenberger, Dennis L.; El-khateeb, Mohammad; Weigand, Wolfgang; Organometallics 28 (2009) 6666–; doi:10.1021/om900675q

data_4070238
_publ_section_title
;
 Preparation and Characterization of Homologous Diiron Dithiolato,
 Diselenato, and Ditellurato Complexes: [FeFe]-Hydrogenase Models
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              6666
_journal_paper_doi               10.1021/om900675q
_journal_volume                  28
_journal_year                    2009
_chemical_formula_moiety         'C11 H8 Fe2 O7 Se2'
_chemical_formula_sum            'C11 H8 Fe2 O7 Se2'
_chemical_formula_weight         521.79
_chemical_name_systematic
; 
 ? 
;
_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                100.635(7)
_cell_angle_beta                 92.451(7)
_cell_angle_gamma                110.565(7)
_cell_formula_units_Z            2
_cell_length_a                   8.7942(7)
_cell_length_b                   9.4877(11)
_cell_length_c                   10.3124(13)
_cell_measurement_reflns_used    5339
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      27.45
_cell_measurement_theta_min      2.49
_cell_volume                     786.33(16)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-scan'
_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  0.0868
_diffrn_reflns_av_sigmaI/netI    0.1793
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5339
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         2.49
_exptl_absorpt_coefficient_mu    6.501
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red-brown
_exptl_crystal_density_diffrn    2.204
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             500
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.989
_refine_diff_density_min         -1.183
_refine_diff_density_rms         0.239
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3540
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.1626
_refine_ls_R_factor_gt           0.0655
_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^)+(0.0399P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1033
_refine_ls_wR_factor_ref         0.1352
_reflns_number_gt                1946
_reflns_number_total             3540
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900675q_si_002.cif
_cod_data_source_block           FO3491
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'NONE' changed to 'none'
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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        786.33(15)
_cod_original_sg_symbol_Hall     -P1
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4070238