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_4082212
_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            'C49 H54 Fe N4 Si'
_chemical_formula_weight         782.90
_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                 107.507(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.4326(18)
_cell_length_b                   11.0713(12)
_cell_length_c                   24.504(3)
_cell_measurement_reflns_used    4668
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      25.52
_cell_measurement_theta_min      2.25
_cell_volume                     4251.5(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-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0708
_diffrn_reflns_av_sigmaI/netI    0.0801
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            40764
_diffrn_reflns_theta_full        30.19
_diffrn_reflns_theta_max         30.19
_diffrn_reflns_theta_min         1.33
_exptl_absorpt_coefficient_mu    0.421
_exptl_absorpt_correction_T_max  0.9205
_exptl_absorpt_correction_T_min  0.9020
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.223
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1664
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.380
_refine_diff_density_min         -0.373
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     507
_refine_ls_number_reflns         12545
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.1003
_refine_ls_R_factor_gt           0.0501
_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^)+(0.0674P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1187
_refine_ls_wR_factor_ref         0.1416
_reflns_number_gt                7670
_reflns_number_total             12545
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om4010274_si_002.cif
_cod_data_source_block           2
_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_sg_symbol_H-M      P2(1)/n
_cod_database_code               4082212