Synthesis and Structural Characterization of Highly Chlorinated, Brominated, Iodinated, and Methylated Carborane Anions, 1-H-CB9X9-, 1-NH2-CB9X9- (X = Cl, Br, I), and 1-H-CB9(CH3)9-
Chi-Wing Tsang; Qingchuan Yang; Eric Tung-Po Sze; Thomas C. W. Mak; Dominic T. W. Chan; Zuowei Xie; Inorganic Chemistry 39 (2000) 3582–3589; doi:10.1021/ic000137q

data_4321203
_publ_section_title
;
 Synthesis and Structural Characterization of Highly Chlorinated,
 Brominated, Iodinated, and Methylated Carborane Anions, 1-H-CB9X9-,
 1-NH2-CB9X9- (X = Cl, Br, I), and 1-H-CB9(CH3)9-
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3582
_journal_page_last               3589
_journal_paper_doi               10.1021/ic000137q
_journal_volume                  39
_journal_year                    2000
_chemical_formula_sum            'C H2 B9 Br9 Cs O0.5'
_chemical_formula_weight         971.42
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 93.403(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.432(3)
_cell_length_b                   12.291(4)
_cell_length_c                   18.733(4)
_cell_measurement_temperature    296(2)
_cell_volume                     2397.7(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.814
_diffrn_measured_fraction_theta_max 0.814
_diffrn_measurement_device_type  IP
_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  0.0944
_diffrn_reflns_av_sigmaI/netI    0.1063
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            4560
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.96
_exptl_absorpt_coefficient_mu    16.527
_exptl_absorpt_correction_T_max  1.439
_exptl_absorpt_correction_T_min  0.667
_exptl_absorpt_correction_type   abscor
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.691
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1708
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.17
_refine_diff_density_max         1.376
_refine_diff_density_min         -1.609
_refine_diff_density_rms         0.276
_refine_ls_extinction_coef       0.00128(10)
_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   1.099
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         2724
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.099
_refine_ls_R_factor_all          0.1092
_refine_ls_R_factor_gt           0.0841
_refine_ls_shift/su_max          0.096
_refine_ls_shift/su_mean         0.015
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1114P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1897
_refine_ls_wR_factor_ref         0.2071
_reflns_number_gt                2203
_reflns_number_total             2724
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic000137q_1.cif
_cod_data_source_block           Cs[2].1/2(H2O)
_cod_original_cell_volume        2397.7(11)
_cod_original_formula_sum        'C H2 B9 Br9 Cs O0.50'
_cod_database_code               4321203