Bis(phosphine)boronium salts. Synthesis, structures and coordination chemistry.
Shuttleworth, Timothy A.; Huertos, Miguel A.; Pernik, Indrek; Young, Rowan D.; Weller, Andrew S.; Dalton transactions (Cambridge, England : 2003) 42 (2013) 12917–12925; doi:10.1039/c3dt50817j

data_7021655
_publ_section_title
;
 Bis(phosphine)boronium salts. Synthesis, structures and coordination
 chemistry.
;
_journal_issue                   36
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12917
_journal_page_last               12925
_journal_paper_doi               10.1039/c3dt50817j
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C50.5 H58 B2 F24 P2'
_chemical_formula_weight         1204.53
_chemical_melting_point          ?
_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                 111.8041(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.97400(10)
_cell_length_b                   18.19600(10)
_cell_length_c                   20.9650(2)
_cell_measurement_reflns_used    13192
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      5.097
_cell_volume                     5657.80(7)
_computing_cell_refinement       'Denzo/Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'Denzo/Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'ORTEP3 (Farrugia, 1997)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.0214
_diffrn_reflns_av_unetI/netI     0.0293
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            25113
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         5.11
_exptl_absorpt_coefficient_mu    0.190
_exptl_absorpt_correction_T_max  1.0
_exptl_absorpt_correction_T_min  0.78
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Denzo/Scalepack (Otwinowski & Minor 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.414
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2468
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.673
_refine_diff_density_min         -0.453
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     854
_refine_ls_number_reflns         12867
_refine_ls_number_restraints     816
_refine_ls_restrained_S_all      1.224
_refine_ls_R_factor_all          0.0781
_refine_ls_R_factor_gt           0.0561
_refine_ls_shift/su_max          0.064
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0588P)^2^+5.1434P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1348
_refine_ls_wR_factor_ref         0.1502
_reflns_number_gt                9734
_reflns_number_total             12867
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt50817j.txt
_cod_data_source_block           1c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        5657.79(7)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_original_formula_sum        'C50.50 H58 B2 F24 P2'
_cod_database_code               7021655