Synthesis and Crystal Structure of a 13-Vertex Carborane Radical Anion with 2n+ 3 Framework Electrons
Xiaodu Fu; Hoi-Shan Chan; Zuowei Xie; Journal of the American Chemical Society 129 (2007) 8964–8965; doi:10.1021/ja073390z

data_4109718
_publ_section_title
;
 Synthesis and Crystal Structure of a 13-Vertex Carborane Radical Anion
 with 2n+ 3 Framework Electrons
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8964
_journal_page_last               8965
_journal_paper_doi               10.1021/ja073390z
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C25 H57 B11 Na O8'
_chemical_formula_weight         627.61
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           12
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 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                 97.580(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   30.55(2)
_cell_length_b                   11.514(8)
_cell_length_c                   10.562(7)
_cell_measurement_reflns_used    988
_cell_measurement_temperature    173(2)
_cell_volume                     3683(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'BRUKER SMART CCD DIFFRACTOMETER'
_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  0.0320
_diffrn_reflns_av_sigmaI/netI    0.0399
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            5968
_diffrn_reflns_theta_full        24.00
_diffrn_reflns_theta_max         24.00
_diffrn_reflns_theta_min         1.34
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9593
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.132
_exptl_crystal_description       block
_exptl_crystal_F_000             1348
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.334
_refine_diff_density_min         -0.306
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     260
_refine_ls_number_reflns         2687
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.1213
_refine_ls_R_factor_gt           0.0881
_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^)+(0.0781P)^2^+20.0546P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2227
_refine_ls_wR_factor_ref         0.2480
_reflns_number_gt                1783
_reflns_number_total             2687
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja073390zsi20070619_024726.cif
_cod_data_source_block           '[2][Na(18-c-6)(THF)2]'
_cod_database_code               4109718