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_4063566
_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            'C60 H59 Ir N4 O2 Si'
_chemical_formula_weight         1088.40
_chemical_name_systematic
;

 ?

;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 107.682(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.157(3)
_cell_length_b                   22.886(5)
_cell_length_c                   16.111(3)
_cell_measurement_reflns_used    952
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.51
_cell_measurement_theta_min      2.41
_cell_volume                     5324.6(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker 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  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0558
_diffrn_reflns_av_sigmaI/netI    0.0575
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            28472
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.60
_exptl_absorpt_coefficient_mu    2.575
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.199487
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.358
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2216
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_platon_squeeze_details
;

;
_refine_diff_density_max         1.904
_refine_diff_density_min         -0.842
_refine_diff_density_rms         0.108
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     613
_refine_ls_number_reflns         9345
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0421
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0676P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1102
_refine_ls_wR_factor_ref         0.1170
_reflns_number_gt                6965
_reflns_number_total             9345
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200251k_si_005.cif
_cod_data_source_block           cwc1531
_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_cell_volume        5324.4(18)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4063566