Base-Promoted Selective Aryl C‒Br and C‒I Bond Cleavage by Iridium(III) Porphyrin: Reduction of IrIII‒OH to IrIIfor Metalloradical Ipso Substitution of Aryl‒Halogen Bonds
Cheung, Chi Wai; Chan, Kin Shing; Organometallics 30 (2011) 4269–; doi:10.1021/om200251k

data_4063563
_publ_section_title
;
 Base-Promoted Selective Aryl C--Br and C--I Bond Cleavage by Iridium(III)
 Porphyrin: Reduction of IrIII--OH to IrIIfor Metalloradical Ipso
 Substitution of Aryl--Halogen Bonds
;
_journal_issue                   16
_journal_name_full               Organometallics
_journal_page_first              4269
_journal_paper_doi               10.1021/om200251k
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C54 H41 Ir N4'
_chemical_formula_weight         938.11
_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                76.108(5)
_cell_angle_beta                 72.703(3)
_cell_angle_gamma                71.709(3)
_cell_formula_units_Z            2
_cell_length_a                   11.3189(19)
_cell_length_b                   12.050(2)
_cell_length_c                   19.000(4)
_cell_measurement_reflns_used    864
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.51
_cell_measurement_theta_min      2.49
_cell_volume                     2318.3(7)
_computing_cell_refinement       'BRUKER SMART CCD DIFFRACTOMETER'
_computing_data_collection       'BRUKER SMART CCD DIFFRACTOMETER'
_computing_data_reduction        'BRUKER SMART CCD DIFFRACTOMETER'
_computing_molecular_graphics    'SIEMENS SHELXTL'
_computing_publication_material  'SIEMENS SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'BRUKER SMART CCD DIFFRACTOMETER'
_diffrn_measurement_method       'OMEGA SCAN'
_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  0.0264
_diffrn_reflns_av_sigmaI/netI    0.0479
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            12629
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.14
_exptl_absorpt_coefficient_mu    2.918
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.559137
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.344
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             940
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.951
_refine_diff_density_min         -0.949
_refine_diff_density_rms         0.145
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.174
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     589
_refine_ls_number_reflns         8154
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      1.174
_refine_ls_R_factor_all          0.0764
_refine_ls_R_factor_gt           0.0553
_refine_ls_shift/su_max          0.013
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0695P)^2^+10.3542P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1586
_refine_ls_wR_factor_ref         0.1729
_reflns_number_gt                6005
_reflns_number_total             8154
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200251k_si_002.cif
_cod_data_source_block           cwc816
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4063563