Deboronation of ortho-carborane by an iminophosphorane: crystal structures of the novel carborane adduct nido-C2B10H12·HNP(NMe2)3 and the borenium salt [(Me2N)3PNHBNP(NMe2)3]2O2+(C2B9H12−)2
Davidson, Matthew G.; Fox, Mark A.; Hibbert, Thomas G.; Howard, Judith A. K.; Mackinnon, Angus; Neretin, Ivan S.; Wade, Kenneth; Chemical Communications  (1999) 1649–; doi:10.1039/a903030a

data_7110564
_publ_section_title
;
 Deboronation of ortho-carborane by an iminophosphorane: crystal
 structures of the novel carborane adduct nido-C2B10H12&#x00B7;HNP(NMe2)3
 and the borenium salt [(Me2N)3PNHBNP(NMe2)3]2O2+(C2B9H12&#x2212;)2
;
_journal_issue                   17
_journal_name_full               'Chemical Communications'
_journal_page_first              1649
_journal_paper_doi               10.1039/a903030a
_journal_year                    1999
_chemical_formula_moiety         'C24 H74 B2 N16 O P4 2+,(C2 B9 H12 1-)2'
_chemical_formula_sum            'C28 H98 B20 N16 O P4'
_chemical_formula_weight         1015.30
_chemical_name_common            '7,8-dicarba-nido-undecaborane borenium salt'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.105(3)
_cell_length_b                   16.529(3)
_cell_length_c                   25.563(5)
_cell_measurement_temperature    150(2)
_cell_volume                     5960(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.936
_diffrn_measured_fraction_theta_max 0.936
_diffrn_measurement_device_type  'SMART 1K CCD area detector'
_diffrn_measurement_method       '\w 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  0.1603
_diffrn_reflns_av_sigmaI/netI    0.3049
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            44070
_diffrn_reflns_theta_full        30.48
_diffrn_reflns_theta_max         30.48
_diffrn_reflns_theta_min         1.47
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.168
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.132
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2184
_refine_diff_density_max         0.537
_refine_diff_density_min         -0.338
_refine_diff_density_rms         0.061
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.893
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     737
_refine_ls_number_reflns         16579
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.893
_refine_ls_R_factor_all          0.2453
_refine_ls_R_factor_gt           0.0619
_refine_ls_shift/su_max          0.071
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0408P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0949
_refine_ls_wR_factor_ref         0.1383
_reflns_number_gt                5792
_reflns_number_total             16579
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            903030asup1.cif
_cod_data_source_block           (6)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7110564