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_4063565
_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            'C57 H51 Ir N4 O2'
_chemical_formula_weight         1016.22
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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                 97.846(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.4621(14)
_cell_length_b                   17.214(2)
_cell_length_c                   25.013(3)
_cell_measurement_reflns_used    948
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.40
_cell_measurement_theta_min      2.37
_cell_volume                     4889.1(10)
_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 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0364
_diffrn_reflns_av_sigmaI/netI    0.0420
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            25968
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    2.776
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.532193
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.381
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2056
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.117
_refine_diff_density_min         -0.671
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     577
_refine_ls_number_reflns         8610
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0544
_refine_ls_R_factor_gt           0.0307
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0378P)^2^+1.6359P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0693
_refine_ls_wR_factor_ref         0.0815
_reflns_number_gt                6449
_reflns_number_total             8610
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200251k_si_004.cif
_cod_data_source_block           cwc479
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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      P2(1)/c
_cod_database_code               4063565