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_4320514
_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_sum            'C24 H43 Cl7 Fe3 Mo N3 O2 S4'
_chemical_formula_weight         1045.49
_chemical_name_common            (Et4N)2[(Cl4-cat)Mo(MeCN)Fe3S4Cl3]
_chemical_name_systematic
;
?
;
_space_group_IT_number           8
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2y'
_symmetry_space_group_name_H-M   'C 1 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                 126.75(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.090(3)
_cell_length_b                   19.775(4)
_cell_length_c                   9.6856(19)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      20.04
_cell_measurement_theta_min      2.06
_cell_volume                     2008.9(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0314
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            1044
_diffrn_reflns_theta_full        20.04
_diffrn_reflns_theta_max         20.04
_diffrn_reflns_theta_min         2.06
_exptl_absorpt_coefficient_mu    2.068
_exptl_crystal_density_diffrn    1.728
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1054
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.885
_refine_diff_density_min         -0.713
_refine_diff_density_rms         0.132
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.09(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         1044
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0542
_refine_ls_R_factor_gt           0.0494
_refine_ls_shift/su_max          0.226
_refine_ls_shift/su_mean         0.008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1193P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1262
_refine_ls_wR_factor_ref         0.1354
_reflns_number_gt                962
_reflns_number_total             1044
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0104914_4.cif
_cod_data_source_block           compound_VIIa
_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_cell_volume        2009.1(7)
_cod_database_code               4320514