Rational Synthesis of High Nuclearity Mo/Fe/S Clusters: The Reductive Coupling Approach in the Convenient Synthesis of (Cl4-cat)2Mo2Fe6S8(PR3)6 [R = Et, nPr, nBu] and the New [(Cl4-cat)2Mo2Fe2S3O(PEt3)3Cl].1/2(Fe(PEt3)2(MeCN)4) and (Cl4-cat)2Mo2Fe3S5(PEt3)5 Clusters
Jaehong Han; Markos Koutmos; Saleem Al Ahmad; Dimitri Coucouvanis; Inorganic Chemistry 40 (2001) 5985–5999; doi:10.1021/ic0104914

data_4320515
_publ_contact_author             'Dimitri Coucouvanis'
_publ_contact_author_address
;
  Dimitri Coucouvanis
  Department of Chemistry
  The University of Michigan
  Ann Arbor, MI 48109
  USA
;
_publ_contact_author_email       dcouc@umich.edu
_publ_section_title
;
 Rational Synthesis of High Nuclearity Mo/Fe/S Clusters: The Reductive
 Coupling Approach in the Convenient Synthesis of (Cl4-cat)2Mo2Fe6S8(PR3)6
 [R = Et, nPr, nBu] and the New
 [(Cl4-cat)2Mo2Fe2S3O(PEt3)3Cl].1/2(Fe(PEt3)2(MeCN)4) and
 (Cl4-cat)2Mo2Fe3S5(PEt3)5 Clusters
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5985
_journal_page_last               5999
_journal_paper_doi               10.1021/ic0104914
_journal_volume                  40
_journal_year                    2001
_chemical_formula_moiety
'[(Cl4-cat)2Mo2Fe2S3O(PEt3)3Cl].1/2(Fe(PEt3)2(MeCN)4).2(MeCN)'
_chemical_formula_sum            'C44 H72 Cl9 Fe2.5 Mo2 N4 O5 P4 S3'
_chemical_formula_weight         1607.67
_chemical_name_common            'Mo2Fe2OS3 cubane'
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 91.680(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.098(3)
_cell_length_b                   22.827(6)
_cell_length_c                   25.855(6)
_cell_measurement_temperature    158(2)
_cell_measurement_theta_max      26.41
_cell_measurement_theta_min      1.19
_cell_volume                     6547(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      158(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  '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  0.0297
_diffrn_reflns_av_sigmaI/netI    0.0236
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            62323
_diffrn_reflns_theta_full        26.41
_diffrn_reflns_theta_max         26.41
_diffrn_reflns_theta_min         1.19
_exptl_absorpt_coefficient_mu    1.519
_exptl_crystal_density_diffrn    1.631
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             3256
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.084
_refine_diff_density_min         -0.774
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     731
_refine_ls_number_reflns         13425
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0430
_refine_ls_R_factor_gt           0.0326
_refine_ls_shift/su_max          0.363
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0514P)^2^+9.3665P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0916
_refine_ls_wR_factor_ref         0.0970
_reflns_number_gt                11139
_reflns_number_total             13425
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0104914_5.cif
_cod_data_source_block           compound_VIII
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_formula_sum        'C44 H72 Cl9 Fe2.50 Mo2 N4 O5 P4 S3'
_cod_database_code               4320515