Reaction of (μ-Oxo)diiron(III) Core with CO2 in N-Methylimidazole: Formation of Mono(μ-carboxylato)(μ-oxo)diiron(III) Complexes with N-Methylimidazole as Ligands
Dana S. Marlin; Marilyn M. Olmstead; Pradip K. Mascharak; Inorganic Chemistry 42 (2003) 1681–1687; doi:10.1021/ic0206140

data_4313246
_publ_section_title
;
 Reaction of (\m-Oxo)diiron(III) Core with CO2 in N-Methylimidazole:
 Formation of Mono(\m-carboxylato)(\m-oxo)diiron(III) Complexes with
 N-Methylimidazole as Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1681
_journal_page_last               1687
_journal_paper_doi               10.1021/ic0206140
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C24 H36 Cl3 Fe N12 O12'
_chemical_formula_weight         846.85
_chemical_name_common            '[Fe(N-MeIm)6](ClO4)3'
_space_group_IT_number           167
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3 2"c'
_symmetry_space_group_name_H-M   'R -3 c :H'
_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                120.00
_cell_formula_units_Z            6
_cell_length_a                   19.511(3)
_cell_length_b                   19.511(3)
_cell_length_c                   15.354(3)
_cell_measurement_reflns_used    2030
_cell_measurement_temperature    92(2)
_cell_measurement_theta_max      26.2
_cell_measurement_theta_min      2.9
_cell_volume                     5061.9(15)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 1999)'
_computing_molecular_graphics    'SHELXTL 5, XP (Sheldrick, 1994)'
_computing_publication_material  'SHELXTL 6.1 (Sheldrick, 2001)'
_computing_structure_refinement  'SHELXTL 6.1 (Sheldrick, 2001)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      92(2)
_diffrn_detector_area_resol_mean 0.83
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.108
_diffrn_reflns_av_sigmaI/netI    0.0643
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            15668
_diffrn_reflns_theta_full        31.51
_diffrn_reflns_theta_max         31.51
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    0.764
_exptl_absorpt_correction_T_max  0.941
_exptl_absorpt_correction_T_min  0.894
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.667
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2622
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.504
_refine_diff_density_min         -0.526
_refine_diff_density_rms         0.080
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.961
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     81
_refine_ls_number_reflns         1838
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.961
_refine_ls_R_factor_all          0.0692
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0409P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0845
_refine_ls_wR_factor_ref         0.0915
_reflns_number_gt                1205
_reflns_number_total             1838
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0206140_1.cif
_cod_data_source_block           mn1208
_cod_original_sg_symbol_H-M      'R -3 c'
_cod_database_code               4313246