N-Heterocyclic Pincer Dicarbene Complexes of Iron(II): C-2 and C-5 Metalated Carbenes on the Same Metal Center
Andreas A. Danopoulos; Nikolaos Tsoureas; Joseph A. Wright; Mark E. Light; Organometallics 23 (2004) 166–168; doi:10.1021/om0341911

data_4060220
_publ_section_title
;
 N-Heterocyclic Pincer Dicarbene Complexes of Iron(II): C-2 and C-5
 Metalated Carbenes on the Same Metal Center
;
_journal_name_full               Organometallics
_journal_page_first              166
_journal_page_last               168
_journal_paper_doi               10.1021/om0341911
_journal_volume                  23
_journal_year                    2004
_chemical_formula_moiety         'C23.80 H29.90 Br1.22 Fe0.61 N3.05 O0.61'
_chemical_formula_sum            'C23.8 H29.9 Br1.22 Fe0.61 N3.05 O0.61'
_chemical_formula_weight         500.04
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           148
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :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            59
_cell_length_a                   34.5914(6)
_cell_length_b                   34.5914(6)
_cell_length_c                   41.4059(12)
_cell_measurement_reflns_used    6856
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3
_cell_volume                     42907.1(16)
_computing_cell_refinement       'Scalepack (Otwinowski and Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'Denzo.a Scalepack (Otwinowski and Minor 1997)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'Nonius KappaCCD Area Detector'
_diffrn_measurement_method       'Phi and Omega scans to fill Ewald Sphere'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.3485
_diffrn_reflns_av_sigmaI/netI    0.3771
_diffrn_reflns_limit_h_max       43
_diffrn_reflns_limit_h_min       -44
_diffrn_reflns_limit_k_max       44
_diffrn_reflns_limit_k_min       -39
_diffrn_reflns_limit_l_max       53
_diffrn_reflns_limit_l_min       -53
_diffrn_reflns_number            176276
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.95
_exptl_absorpt_coefficient_mu    2.022
_exptl_absorpt_correction_T_max  0.9418
_exptl_absorpt_correction_T_min  0.5380
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   Sortav
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.142
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             15192
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.571
_refine_diff_density_min         -0.894
_refine_diff_density_rms         0.139
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.921
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     865
_refine_ls_number_reflns         21134
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.921
_refine_ls_R_factor_all          0.3149
_refine_ls_R_factor_gt           0.0925
_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^)+(0.1265P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2065
_refine_ls_wR_factor_ref         0.2852
_reflns_number_gt                6856
_reflns_number_total             21134
_reflns_threshold_expression     >2sigma(I)
_cod_original_sg_symbol_H-M      'R -3'
_cod_original_formula_sum        'C23.80 H29.90 Br1.22 Fe0.61 N3.05 O0.61'
_cod_database_code               4060220