Piano-Stool Iron(II) Complexes as Probes for the Bonding ofN-Heterocyclic Carbenes: Indications for π-Acceptor Ability
Mercs, Laszlo; Labat, Gaël; Neels, Antonia; Ehlers, Andreas; Albrecht, Martin; Organometallics 25 (2006) 5648–; doi:10.1021/om060637c

data_4074429
_publ_section_title
;
 Piano-Stool Iron(II) Complexes as Probes for the Bonding ofN-Heterocyclic
 Carbenes:&#x00A0; Indications for \p-Acceptor Ability
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              5648
_journal_paper_doi               10.1021/om060637c
_journal_volume                  25
_journal_year                    2006
_chemical_formula_sum            'C18.38 H20.75 Cl0.75 Fe I N3 O'
_chemical_formula_weight         508.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.350(12)
_cell_angle_beta                 96.867(12)
_cell_angle_gamma                92.036(12)
_cell_formula_units_Z            4
_cell_length_a                   6.5664(7)
_cell_length_b                   18.2658(19)
_cell_length_c                   18.5978(19)
_cell_measurement_reflns_used    7633
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.75
_cell_measurement_theta_min      2.15
_cell_volume                     2213.1(4)
_computing_cell_refinement       'CELL (Stoe IPDS Software, 2000)'
_computing_data_collection       'EXPOSE (Stoe IPDS Software, 2000)'
_computing_data_reduction        'INTEGRATE (Stoe IPDS Software, 2000)'
_computing_molecular_graphics    'PLATON99 (Spek, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 0.81\%A
_diffrn_measured_fraction_theta_full 0.922
_diffrn_measured_fraction_theta_max 0.922
_diffrn_measurement_device_type  'STOE IPDS'
_diffrn_measurement_method       'phi oscillation'
_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  0.0696
_diffrn_reflns_av_sigmaI/netI    0.1382
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            17370
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         2.21
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.177
_exptl_absorpt_correction_T_max  0.639
_exptl_absorpt_correction_T_min  0.603
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'MULABS, (PLATON03, Speck, 2003)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.528
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1007
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         2.369
_refine_diff_density_min         -1.539
_refine_diff_density_rms         0.197
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.840
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     437
_refine_ls_number_reflns         8021
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      0.841
_refine_ls_R_factor_all          0.1131
_refine_ls_R_factor_gt           0.0572
_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^)+(0.0951P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1460
_refine_ls_wR_factor_ref         0.1638
_reflns_number_gt                4132
_reflns_number_total             8021
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060637csi20060831_125154.cif
_cod_data_source_block           compound3b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4074429