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_4101458
_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            'C28 H53 B11 Na2 O5'
_chemical_formula_weight         634.59
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 100.730(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.6621(8)
_cell_length_b                   28.285(2)
_cell_length_c                   12.8219(9)
_cell_measurement_temperature    293(2)
_cell_volume                     3799.1(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0611
_diffrn_reflns_av_sigmaI/netI    0.0717
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            18518
_diffrn_reflns_theta_full        24.00
_diffrn_reflns_theta_max         24.00
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9580
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.109
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1352
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.420
_refine_diff_density_min         -0.320
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     459
_refine_ls_number_reflns         5966
_refine_ls_number_restraints     28
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.1694
_refine_ls_R_factor_gt           0.0978
_refine_ls_shift/su_max          0.040
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1827P)^2^+1.9685P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2739
_refine_ls_wR_factor_ref         0.3336
_reflns_number_gt                2991
_reflns_number_total             5966
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0605772si20060125_040455.cif
_cod_data_source_block           15a
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4101458