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_4102759
_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_formula_moiety         'C46 H56 Ir N6 O, C32 H12 B F24'
_chemical_formula_sum            'C78 H68 B F24 Ir N6 O'
_chemical_formula_weight         1764.42
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yac'
_symmetry_space_group_name_H-M   'P 1 2/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             10-05-01
_audit_creation_method           CRYSTALS_ver_14.06
_cell_angle_alpha                90
_cell_angle_beta                 95.7575(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.9101(1)
_cell_length_b                   14.4822(1)
_cell_length_c                   20.7483(2)
_cell_measurement_reflns_used    9023
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     3859.67(5)
_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 0.992
_diffrn_measured_fraction_theta_max 0.990
_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  0.020
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            71076
_diffrn_reflns_theta_full        26.862
_diffrn_reflns_theta_max         27.410
_diffrn_reflns_theta_min         5.135
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.836
_exptl_absorpt_correction_T_max  0.86
_exptl_absorpt_correction_T_min  0.80
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            clear_pale_orange
_exptl_crystal_density_diffrn    1.518
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1768
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.99
_refine_diff_density_min         -0.97
_refine_ls_extinction_coef       200(20)
_refine_ls_extinction_method     'Larson (1970), Equation 22'
_refine_ls_goodness_of_fit_ref   1.0001
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     560
_refine_ls_number_reflns         8700
_refine_ls_number_restraints     324
_refine_ls_R_factor_all          0.0431
_refine_ls_R_factor_gt           0.0375
_refine_ls_shift/su_max          0.0020965
_refine_ls_shift/su_mean         0.0000573
_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: 
 35.6 57.6 33.6 13.4 2.85 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0961
_refine_ls_wR_factor_gt          0.0894
_refine_ls_wR_factor_ref         0.0961
_reflns_limit_h_max              16
_reflns_limit_h_min              -16
_reflns_limit_k_max              18
_reflns_limit_k_min              0
_reflns_limit_l_max              26
_reflns_limit_l_min              0
_reflns_number_gt                7894
_reflns_number_total             8701
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   2.49
_oxford_diffrn_Wilson_scale      22.89
_oxford_refine_ls_r_factor_ref   0.0431
_oxford_refine_ls_scale          0.22729(15)
_oxford_reflns_number_all        8700
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_oxford_structure_analysis_title 091ct09
_cod_data_source_file            ja1043787_si_002_05.cif
_cod_data_source_block           8b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P 1 2/n 1 '
_cod_original_formula_sum        'C78 H68 B1 F24 Ir N6 O'
_cod_database_code               4102759