Iron(II) Complexes Featuring Bidentate N-Heterocyclic Carbene‒Silyl Ligands: Synthesis and Characterization
Ouyang, Zhenwu; Deng, Liang; Organometallics 32 (2013) 7268–; doi:10.1021/om4010274

data_4082213
_publ_section_title
;
 Iron(II) Complexes Featuring Bidentate N-Heterocyclic Carbene--Silyl
 Ligands: Synthesis and Characterization
;
_journal_issue                   24
_journal_name_full               Organometallics
_journal_page_first              7268
_journal_paper_doi               10.1021/om4010274
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C54 H56 Fe N4 Si'
_chemical_formula_weight         844.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 105.132(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.8858(16)
_cell_length_b                   26.122(4)
_cell_length_c                   16.588(3)
_cell_measurement_reflns_used    7278
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      28.32
_cell_measurement_theta_min      2.49
_cell_volume                     4553.4(13)
_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-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0772
_diffrn_reflns_av_sigmaI/netI    0.0864
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            44856
_diffrn_reflns_theta_full        30.77
_diffrn_reflns_theta_max         30.77
_diffrn_reflns_theta_min         1.49
_exptl_absorpt_coefficient_mu    0.398
_exptl_absorpt_correction_T_max  0.9318
_exptl_absorpt_correction_T_min  0.8831
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.233
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.497
_refine_diff_density_min         -0.660
_refine_diff_density_rms         0.100
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     551
_refine_ls_number_reflns         14065
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.1154
_refine_ls_R_factor_gt           0.0674
_refine_ls_shift/su_max          0.023
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1175P)^2^+0.0614P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1726
_refine_ls_wR_factor_ref         0.2075
_reflns_number_gt                8851
_reflns_number_total             14065
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om4010274_si_002.cif
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        4553.3(12)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4082213