Three-coordinate iron(IV) bisimido complexes with aminocarbene ligation: synthesis, structure, and reactivity.
Wang, Lei; Hu, Lianrui; Zhang, Hezhong; Chen, Hui; Deng, Liang; Journal of the American Chemical Society 137 (2015) 14196–14207; doi:10.1021/jacs.5b09579

data_4129691
_publ_section_title
;
 Three-coordinate iron(IV) bisimido complexes with aminocarbene ligation:
 synthesis, structure, and reactivity.
;
_journal_issue                   44
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14196
_journal_page_last               14207
_journal_paper_doi               10.1021/jacs.5b09579
_journal_volume                  137
_journal_year                    2015
_chemical_formula_sum            'C51 H66 Fe N4 Si'
_chemical_formula_weight         819.01
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014
_cell_angle_alpha                90
_cell_angle_beta                 98.003(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.3109(11)
_cell_length_b                   23.880(2)
_cell_length_c                   17.4294(17)
_cell_measurement_reflns_used    4313
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      23.00
_cell_measurement_theta_min      2.20
_cell_volume                     4661.9(8)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0609
_diffrn_reflns_av_unetI/netI     0.0576
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            32993
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.794
_diffrn_reflns_theta_min         2.008
_exptl_absorpt_coefficient_mu    0.387
_exptl_absorpt_correction_T_max  0.746
_exptl_absorpt_correction_T_min  0.636
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.167
_exptl_crystal_description       block
_exptl_crystal_F_000             1760
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.332
_refine_diff_density_min         -0.273
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     538
_refine_ls_number_reflns         8911
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.0754
_refine_ls_R_factor_gt           0.0435
_refine_ls_shift/su_max          0.028
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0462P)^2^+1.3721P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0947
_refine_ls_wR_factor_ref         0.1084
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6253
_reflns_number_total             8911
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja5b09579_si_002.cif
_cod_data_source_block           8
_cod_original_cell_volume        4662.0(8)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4129691
_shelx_estimated_absorpt_t_min   0.886
_shelx_estimated_absorpt_t_max   0.970
_shelxl_version_number           2014-3
_shelx_res_checksum              38793
_shelx_hkl_checksum              5528