Palladium/Nickel-Cocatalyzed Cycloaddition of 1,3-Dehydro-o-Carborane with Alkynes. Facile Synthesis of C,B-Substituted Carboranes
Zaozao Qiu; Zuowei Xie; Journal of the American Chemical Society 132 (2010) 16085–16093; doi:10.1021/ja1058789

data_4103498
_publ_section_title
;
 Palladium/Nickel-Cocatalyzed Cycloaddition of 1,3-Dehydro-o-Carborane
 with Alkynes. Facile Synthesis of C,B-Substituted Carboranes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16085
_journal_page_last               16093
_journal_paper_doi               10.1021/ja1058789
_journal_volume                  132
_journal_year                    2010
_chemical_formula_sum            'C31 H32 B10'
_chemical_formula_weight         512.67
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           148
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   38.9899(14)
_cell_length_b                   38.9899(14)
_cell_length_c                   12.1613(4)
_cell_measurement_temperature    173(2)
_cell_volume                     16010.9(10)
_computing_cell_refinement       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_collection       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_reduction        'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_molecular_graphics    'SIEMENS SHELXTL'
_computing_publication_material  'SIEMENS SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'BRUKER KAPPA APEXII DUO 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  0.0582
_diffrn_reflns_av_sigmaI/netI    0.0349
_diffrn_reflns_limit_h_max       46
_diffrn_reflns_limit_h_min       -46
_diffrn_reflns_limit_k_max       46
_diffrn_reflns_limit_k_min       -46
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            70398
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    0.050
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6850
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    0.957
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             4824
_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         0.286
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.050
_refine_ls_extinction_coef       0.00060(14)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         6196
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.1075
_refine_ls_R_factor_gt           0.0687
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1395P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2047
_refine_ls_wR_factor_ref         0.2274
_reflns_number_gt                3579
_reflns_number_total             6196
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1058789_si_001_4.cif
_cod_data_source_block           4j
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               4103498