Three-Coordinate Iron(II) N-Heterocyclic Carbene Alkyl Complexes
Danopoulos, Andreas A.; Braunstein, Pierre; Wesolek, Marcel; Monakhov, Kirill Yu.; Rabu, Pierre; Robert, Vincent; Organometallics 31 (2012) 4102–; doi:10.1021/om300245z

data_4078471
_publ_section_title
;
 Three-Coordinate Iron(II) N-Heterocyclic Carbene Alkyl Complexes
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              4102
_journal_paper_doi               10.1021/om300245z
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C54 H76 Cl4 Fe2 N4'
_chemical_formula_sum            'C54 H76 Cl4 Fe2 N4'
_chemical_formula_weight         1034.69
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 123.290(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.4319(5)
_cell_length_b                   14.0115(7)
_cell_length_c                   19.9760(7)
_cell_measurement_reflns_used    6354
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     2908.6(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    ORTEP
_computing_publication_material  PLATON
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0457
_diffrn_reflns_av_sigmaI/netI    0.0758
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            11723
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.84
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.718
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.181
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.392
_refine_diff_density_min         -0.304
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.971
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     297
_refine_ls_number_reflns         6650
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.1049
_refine_ls_R_factor_gt           0.0495
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0681P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1127
_refine_ls_wR_factor_ref         0.1323
_reflns_number_gt                3920
_reflns_number_total             6650
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300245z_si_002.cif
_cod_data_source_block           complex1a
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4078471