Origins of Enantioselectivity during Allylic Substitution Reactions Catalyzed by Metallacyclic Iridium Complexes
Sherzod T. Madrahimov; John F. Hartwig; Journal of the American Chemical Society 134 (2012) 8136–8147; doi:10.1021/ja212217j

data_4117926
_publ_section_title
;
 Origins of Enantioselectivity during Allylic Substitution Reactions
 Catalyzed by Metallacyclic Iridium Complexes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8136
_journal_page_last               8147
_journal_paper_doi               10.1021/ja212217j
_journal_volume                  134
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C53 H49 Br Ir N O2 P, C6 H6, B F4'
_chemical_formula_sum            'C59 H55 B Br F4 Ir N O2 P'
_chemical_formula_weight         1199.93
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
; 
2008-08-09   text and data added, srw 
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.7247(4)
_cell_length_b                   17.6448(6)
_cell_length_c                   23.9300(8)
_cell_measurement_reflns_used    6698
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      22.93
_cell_measurement_theta_min      2.25
_cell_volume                     4950.6(3)
_computing_cell_refinement       'SAINT V7.23A (Bruker, 2005)'
_computing_data_collection       'APEX2 V2.0-1 (Bruker, 2004)'
_computing_data_reduction
; 
SAINT V7.23A, XPREP V2005/2, SADABS V2007/4 (Bruker, 2005 & 2007) 
;
_computing_molecular_graphics    'SHELXTL V6.12 (Bruker, 2005)'
_computing_publication_material  'XCIF V6.12 (Bruker, 2005)'
_computing_structure_refinement  'SHELXTL V6.12 (Bruker, 2005)'
_computing_structure_solution    'SHELXTL V6.12 (Bruker, 2005)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       'Bruker Kappa/ApexII CCD'
_diffrn_measurement_method       'profile data from \f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_wavelength_id  ba42cas
_diffrn_reflns_av_R_equivalents  0.0567
_diffrn_reflns_av_sigmaI/netI    0.0409
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            61239
_diffrn_reflns_theta_full        25.47
_diffrn_reflns_theta_max         25.47
_diffrn_reflns_theta_min         1.43
_exptl_absorpt_coefficient_mu    3.597
_exptl_absorpt_correction_T_max  0.8512
_exptl_absorpt_correction_T_min  0.4772
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'SHELXTL/XPREP V2005/2 (Bruker, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.610
_exptl_crystal_description       tabular
_exptl_crystal_F_000             2400
_exptl_crystal_id                ba42cas
_exptl_crystal_preparation
; 
The data crystal was mounted using oil (Parantone-N, Exxon) to a 
0.3 mm cryo-loop (Hampton Research) with the (3 -3 4) scattering 
planes roughly normal to the spindle axis. 
;
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.731
_refine_diff_density_min         -0.593
_refine_diff_density_rms         0.085
_refine_ls_abs_structure_details 'Flack (1983),  4057 Friedels'
_refine_ls_abs_structure_Flack   -0.011(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     733
_refine_ls_number_reflns         9133
_refine_ls_number_restraints     609
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0432
_refine_ls_R_factor_gt           0.0316
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0315P)^2^+5.3948P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0662
_refine_ls_wR_factor_ref         0.0703
_reflns_number_gt                7848
_reflns_number_total             9133
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja212217j_si_003.cif
_cod_data_source_block           ba42cas
_cod_original_sg_symbol_Hall     'P 2ac 2ab '
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_database_code               4117926