Dehydrogenation of Saturated CC and BN Bonds at Cationic N-Heterocyclic Carbene Stabilized M(III) Centers (M = Rh, Ir)
Christina Y. Tang; Amber L. Thompson; Simon Aldridge; Journal of the American Chemical Society 132 (2010) 10578–10591; doi:10.1021/ja1043787

data_4102771
_publ_contact_author             'Simon Aldridge'
_publ_contact_author_email       simon.aldridge@chem.ox.ac.uk
_publ_section_title
;
 Dehydrogenation of Saturated CC and BN Bonds at Cationic N-Heterocyclic
 Carbene Stabilized M(III) Centers (M = Rh, Ir)
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10578
_journal_page_last               10591
_journal_paper_doi               10.1021/ja1043787
_journal_volume                  132
_journal_year                    2010
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C32 H12 B F24, C21 H29 B N3'
_chemical_formula_sum            'C53 H41 B2 F24 N3'
_chemical_formula_weight         1197.51
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             10-05-03
_audit_creation_method           CRYSTALS_ver_14.06
_cell_angle_alpha                90
_cell_angle_beta                 115.2266(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.8899(1)
_cell_length_b                   35.5605(3)
_cell_length_c                   13.1718(1)
_cell_measurement_reflns_used    12323
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     5461.77(8)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2001).'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.025
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       41
_diffrn_reflns_limit_k_min       -46
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            56307
_diffrn_reflns_theta_full        27.487
_diffrn_reflns_theta_max         27.487
_diffrn_reflns_theta_min         5.115
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.142
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.88
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            clear_pale_colourless
_exptl_crystal_density_diffrn    1.456
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2424
_exptl_crystal_size_max          0.360
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.73
_refine_diff_density_min         -0.58
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0001
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1589
_refine_ls_number_reflns         9519
_refine_ls_number_restraints     685
_refine_ls_R_factor_all          0.0665
_refine_ls_R_factor_gt           0.0595
_refine_ls_shift/su_max          0.0010044
_refine_ls_shift/su_mean         0.0000333
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 27.7 43.0 23.2 8.24 1.52 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1527
_refine_ls_wR_factor_gt          0.1441
_refine_ls_wR_factor_ref         0.1527
_reflns_limit_h_max              15
_reflns_limit_h_min              -16
_reflns_limit_k_max              46
_reflns_limit_k_min              0
_reflns_limit_l_max              17
_reflns_limit_l_min              0
_reflns_number_gt                8417
_reflns_number_total             12596
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   4.15
_oxford_diffrn_Wilson_scale      31.94
_oxford_refine_ls_r_factor_ref   0.0665
_oxford_refine_ls_scale          0.3508(4)
_oxford_reflns_number_all        9519
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_oxford_structure_analysis_title 065ct09
_cod_data_source_file            ja1043787_si_002_17.cif
_cod_data_source_block           '[(IMes)BH2NH3]+[BArf4]-'
_cod_original_sg_symbol_H-M      'P 1 21 1 '
_cod_database_code               4102771