Monocarbaborane anion chemistry. The elusive C-arylated [PhCB11H11]‒, [PhCB9H9]‒ and [PhCB8H8]‒ anions
Jelínek, Tomáš; Kilner, Colin A.; Thornton-Pett, Mark; Kennedy, John D.; Chemical Communications  (2001) 1790–; doi:10.1039/b105645j

data_7114694
_publ_section_title
;
 Monocarbaborane anion chemistry. The elusive C-arylated [PhCB11H11]--,
 [PhCB9H9]-- and [PhCB8H8]-- anions
;
_journal_issue                   18
_journal_name_full               'Chemical Communications'
_journal_page_first              1790
_journal_paper_doi               10.1039/b105645j
_journal_year                    2001
_chemical_formula_sum            'C15 H34 B9 N'
_chemical_formula_weight         325.72
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 99.099(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   24.4404(16)
_cell_length_b                   10.5641(6)
_cell_length_c                   16.7478(14)
_cell_measurement_temperature    150(2)
_cell_volume                     4269.7(5)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1996)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1996)'
_computing_molecular_graphics    'ORTEP3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WC (Thornton-Pett, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type
'Nonius KappaCCD area detector diffractometer'
_diffrn_measurement_method
;
Detector set at 30mm from sample with different 2theta offsets 
1 degree phi exposures for chi==0 degree settings
1 degree omega exposures for chi==90 degree settings
;
_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  0.1604
_diffrn_reflns_av_sigmaI/netI    0.1407
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            13065
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.51
_exptl_absorpt_coefficient_mu    0.051
_exptl_absorpt_correction_T_max  0.9964
_exptl_absorpt_correction_T_min  0.9904
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Using multiple and symmetry-related data measurements via the program SORTAV
See R.H. Blessing, Acta Cryst (1995), A51, 33-38 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.013
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1408
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.188
_refine_diff_density_min         -0.224
_refine_diff_density_rms         0.051
_refine_ls_extinction_coef       0.0040(12)
_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   1.057
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         4147
_refine_ls_number_restraints     38
_refine_ls_restrained_S_all      1.104
_refine_ls_R_factor_all          0.1567
_refine_ls_R_factor_gt           0.0826
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w==1/[\s^2^(Fo^2^)+(0.0720P)^2^+2.7654P] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1790
_refine_ls_wR_factor_ref         0.2285
_reflns_number_gt                2212
_reflns_number_total             4147
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b105645j.txt
_cod_data_source_block           tom10306
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7114694