Synthesis of a Molecular Mo2Fe6S9 Cluster with the Topology of the PN Cluster of Nitrogenase by Rearrangement of an Edge-Bridged Mo2Fe6S8 Double Cubane
Yugen Zhang; R. H. Holm; Journal of the American Chemical Society 125 (2003) 3910–3920; doi:10.1021/ja0214633

data_4113596
_publ_section_title
;
 Synthesis of a Molecular Mo2Fe6S9 Cluster with the Topology of the PN
 Cluster of Nitrogenase by Rearrangement of an Edge-Bridged Mo2Fe6S8
 Double Cubane
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3910
_journal_page_last               3920
_journal_paper_doi               10.1021/ja0214633
_journal_volume                  125
_journal_year                    2003
_chemical_formula_moiety         (Et4N)2[TpMoFe3S4(SCH2Ph)3]
_chemical_formula_sum            'C46 H71 B Fe3 Mo N8 S7'
_chemical_formula_weight         1234.83
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.155(5)
_cell_length_b                   16.731(4)
_cell_length_c                   18.149(5)
_cell_measurement_temperature    293(2)
_cell_volume                     5513(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      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0894
_diffrn_reflns_av_sigmaI/netI    0.0978
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            29468
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.66
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    1.301
_exptl_absorpt_correction_T_max  0.878
_exptl_absorpt_correction_T_min  0.855
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            'dark brown'
_exptl_crystal_density_diffrn    1.488
_exptl_crystal_density_meas      ?
_exptl_crystal_description       plate-like
_exptl_crystal_F_000             2560
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         2.159
_refine_diff_density_min         -0.671
_refine_diff_density_rms         0.099
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.937
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     607
_refine_ls_number_reflns         8682
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.937
_refine_ls_R_factor_all          0.0644
_refine_ls_R_factor_gt           0.0497
_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^)+(0.0391P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0957
_refine_ls_wR_factor_ref         0.0998
_reflns_number_gt                6932
_reflns_number_total             8682
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0214633_5.cif
_cod_data_source_block           (Et4N)2[TpMoFe3S4(SCH2Ph)3]
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        5513(2)
_cod_database_code               4113596