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_4320516
_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            'C68 H82 B2 Fe N4 P2'
_chemical_formula_weight         1094.79
_chemical_name_common            (BPh4)[Fe(PEt3)2(MeCN)4]
_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                93.2090(10)
_cell_angle_beta                 114.5760(10)
_cell_angle_gamma                116.6450(10)
_cell_formula_units_Z            1
_cell_length_a                   12.0756(10)
_cell_length_b                   12.2070(10)
_cell_length_c                   13.4024(11)
_cell_measurement_temperature    158(2)
_cell_volume                     1532.7(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      158(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0253
_diffrn_reflns_av_sigmaI/netI    0.0376
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            15692
_diffrn_reflns_theta_full        26.41
_diffrn_reflns_theta_max         26.41
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.342
_exptl_absorpt_correction_T_max  26.41
_exptl_absorpt_correction_T_min  1.75
_exptl_crystal_density_diffrn    1.186
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.388
_refine_diff_density_min         -0.447
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     349
_refine_ls_number_reflns         6225
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0535
_refine_ls_R_factor_gt           0.0388
_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^)+(0.0503P)^2^+0.4966P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0943
_refine_ls_wR_factor_ref         0.0991
_reflns_number_gt                5010
_reflns_number_total             6225
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0104914_6.cif
_cod_data_source_block           compound_IX
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_database_code               4320516