Synthesis, structure, and reactivity of 13-vertex carboranes and 14-vertex metallacarboranes.
Deng, Liang; Chan, Hoi-Shan; Xie, Zuowei; Journal of the American Chemical Society 128 (2006) 5219–5230; doi:10.1021/ja0605772

data_4101454
_publ_section_title
;
 Synthesis, structure, and reactivity of 13-vertex carboranes and
 14-vertex metallacarboranes.
;
_journal_issue                   15
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5219
_journal_page_last               5230
_journal_paper_doi               10.1021/ja0605772
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C5 H11 B11 Br6'
_chemical_formula_weight         669.51
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.4353(19)
_cell_length_b                   17.434(3)
_cell_length_c                   17.516(3)
_cell_measurement_temperature    293(2)
_cell_volume                     3797.3(10)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.0816
_diffrn_reflns_av_sigmaI/netI    0.0564
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            19376
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    12.670
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.3639
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.342
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2448
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.977
_refine_diff_density_min         -0.771
_refine_diff_density_rms         0.221
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3344
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.1172
_refine_ls_R_factor_gt           0.0624
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1087P)^2^+30.2320P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1562
_refine_ls_wR_factor_ref         0.2050
_reflns_number_gt                1887
_reflns_number_total             3344
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0605772si20060125_040455.cif
_cod_data_source_block           11
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               4101454