Electronic Effects in the Oxidative Addition of Iodomethane with Mixed-Aryl β-Diketiminate Chromium Complexes
Zhou, Wen; Tang, Liming; Patrick, Brian O.; Smith, Kevin M.; Organometallics 30 (2011) 603–; doi:10.1021/om100961f

data_4063827
_publ_section_title
;
 Electronic Effects in the Oxidative Addition of Iodomethane with
 Mixed-Aryl \b-Diketiminate Chromium Complexes
;
_journal_issue                   3
_journal_name_full               Organometallics
_journal_page_first              603
_journal_paper_doi               10.1021/om100961f
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C28 H34 Cl Cr N2'
_chemical_formula_weight         486.02
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.5875(18)
_cell_length_b                   19.271(3)
_cell_length_c                   24.113(4)
_cell_measurement_reflns_used    9961
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.92
_cell_measurement_theta_min      2.28
_cell_volume                     4919.8(14)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker X8 APEX II'
_diffrn_measurement_method       'area detector'
_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  0.0306
_diffrn_reflns_av_sigmaI/netI    0.0135
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            75233
_diffrn_reflns_theta_full        27.97
_diffrn_reflns_theta_max         27.97
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    0.592
_exptl_absorpt_correction_T_max  0.799
_exptl_absorpt_correction_T_min  0.730
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.312
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2056
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.48
_exptl_crystal_size_min          0.38
_refine_diff_density_max         0.350
_refine_diff_density_min         -0.444
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     295
_refine_ls_number_reflns         5900
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0376
_refine_ls_R_factor_gt           0.0300
_refine_ls_shift/su_max          0.025
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0376P)^2^+2.9370P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0772
_refine_ls_wR_factor_ref         0.0833
_reflns_number_gt                5100
_reflns_number_total             5900
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100961f_si_004.cif
_cod_data_source_block           4c_Cl_4H
_cod_original_cell_volume        4919.9(14)
_cod_original_sg_symbol_H-M      'P bca'
_cod_database_code               4063827