Exo-pi-bonding to an ortho-carborane hypercarbon atom: systematic icosahedral cage distortions reflected in the structures of the fluoro-, hydroxy- and amino-carboranes, 1-X-2-Ph-1,2-C2B10H10 (X=F, OH or NH2) and related anions.
Boyd, Lynn A.; Clegg, William; Copley, Royston C. B.; Davidson, Matthew G.; Fox, Mark A.; Hibbert, Thomas G.; Howard, Judith A. K.; Mackinnon, Angus; Peace, Richard J.; Wade, Kenneth; Dalton transactions (Cambridge, England : 2003)  (2004) 2786–2799; doi:10.1039/B406422D

data_7031099
_publ_section_title
;
 Exo-pi-bonding to an ortho-carborane hypercarbon atom: systematic
 icosahedral cage distortions reflected in the structures of the fluoro-,
 hydroxy- and amino-carboranes, 1-X-2-Ph-1,2-C2B10H10 (X=F, OH or NH2) and
 related anions.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2786
_journal_page_last               2799
_journal_paper_doi               10.1039/B406422D
_journal_year                    2004
_chemical_formula_moiety         'C8 H16 B10 O, 0.5 H2 O'
_chemical_formula_sum            'C8 H17 B10 O1.5'
_chemical_formula_weight         245.32
_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   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.97(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.628(3)
_cell_length_b                   6.8043(16)
_cell_length_c                   16.020(4)
_cell_measurement_reflns_used    32
_cell_measurement_temperature    160(2)
_cell_measurement_theta_max      12.37
_cell_measurement_theta_min      10.44
_cell_volume                     1366.3(6)
_computing_cell_refinement       'Stoe DIF4'
_computing_data_collection       'Stoe DIF4'
_computing_data_reduction        'local programs'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL and local programs'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      160(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Stoe-Siemens four-circle diffractometer'
_diffrn_measurement_method       '\w/\q scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0459
_diffrn_reflns_av_sigmaI/netI    0.0443
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            3045
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.56
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  60
_diffrn_standards_number         5
_exptl_absorpt_coefficient_mu    0.064
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.193
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             508
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.52
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.259
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.004(2)
_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   1.076
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     194
_refine_ls_number_reflns         2395
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0704
_refine_ls_R_factor_gt           0.0539
_refine_ls_shift/su_max          0.024
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0630P)^2^+0.7063P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1326
_refine_ls_wR_factor_ref         0.1459
_reflns_number_gt                1910
_reflns_number_total             2395
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b406422d.txt
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_original_formula_sum        'C8 H17 B10 O1.50'
_cod_database_code               7031099