A simple entry into nido-C2B10 clusters: HCl promoted cleavage of the C‒C bond in ortho-carboranyl diphosphines
Charmant, Jonathan P. H.; Haddow, Mairi F.; Mistry, Rakesh; Norman, Nicholas C.; Orpen, A. Guy; Pringle, Paul G.; Dalton Transactions  (2008) 1409–1411; doi:10.1039/b719404h

data_7003770
_publ_section_title
;
 A simple entry into nido-C2B10 clusters: HCl promoted cleavage of the
 C--C bond in ortho-carboranyl diphosphines
;
_journal_issue                   11
_journal_name_full               'Dalton Transactions'
_journal_page_first              1409
_journal_page_last               1411
_journal_paper_doi               10.1039/b719404h
_journal_year                    2008
_chemical_formula_moiety         'C22 H50 B10 P2'
_chemical_formula_sum            'C22 H50 B10 P2'
_chemical_formula_weight         484.66
_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                 106.23(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.936(2)
_cell_length_b                   17.900(4)
_cell_length_c                   16.742(3)
_cell_measurement_reflns_used    13943
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.28
_cell_volume                     2859.0(11)
_computing_cell_refinement       'SMART v5.628 (Bruker-AXS, 1997-2002)'
_computing_data_collection       'SMART v5.628 (Bruker-AXS, 1997-2002)'
_computing_data_reduction
;
SAINT v7.06A (Bruker-AXS, 1997-2003) & SHELXTL v6.14 (Bruker-AXS, 2003)
;
_computing_molecular_graphics    'Bruker SHELXTL V6.14 (Bruker AXS, 2003)'
_computing_publication_material  'Bruker SHELXTL V6.14 (Bruker AXS, 2003)'
_computing_structure_refinement  'SHELXL V6.12 (Bruker 2001)'
_computing_structure_solution    'SHELXS V6.12 (Bruker 2001)'
_diffrn_ambient_temperature      100
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.366
_diffrn_detector_type            'Bruker-AXS SMART APEX'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_details      'frames, 0.3\% width'
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker-AXS D8'
_diffrn_measurement_method       '\w scans'
_diffrn_measurement_specimen_support 'glass fibre'
_diffrn_radiation_collimation    monocap
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71074
_diffrn_reflns_av_R_equivalents  0.0384
_diffrn_reflns_av_sigmaI/netI    0.0293
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            31046
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.13
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           40
_diffrn_source_power             2
_diffrn_source_target            Mo
_diffrn_source_voltage           50
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.164
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.83
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2.10 (Bruker AXS 2003)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.126
_exptl_crystal_density_method    none
_exptl_crystal_description       block
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.484
_refine_diff_density_min         -0.245
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.300
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         6552
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.300
_refine_ls_R_factor_all          0.0391
_refine_ls_R_factor_gt           0.0349
_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^)+(0.0589P)^2^+0.1854P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1052
_refine_ls_wR_factor_ref         0.1085
_reflns_number_gt                5875
_reflns_number_total             6552
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            b719404h.txt
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_diffrn_radiation_probe' value 'X-ray' changed to 'x-ray'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        2859.0(10)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7003770