Large, weakly basic bis(carboranyl)phosphines: an experimental and computational study.
Riley, Laura E.; Krämer, Tobias; McMullin, Claire L.; Ellis, David; Rosair, Georgina M.; Sivaev, Igor B.; Welch, Alan J.; Dalton transactions (Cambridge, England : 2003) 46 (2017) 5218–5228; doi:10.1039/c7dt00485k

data_7042359
_publ_section_title
;
 Large, weakly basic bis(carboranyl)phosphines: an experimental and
 computational study.
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5218
_journal_page_last               5228
_journal_paper_doi               10.1039/c7dt00485k
_journal_volume                  46
_journal_year                    2017
_chemical_formula_moiety         'C6 H25 Au B20 Cl P'
_chemical_formula_sum            'C7.25 H27.5 Au B20 Cl3.5 P'
_chemical_formula_weight         683.00
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_date             2016-05-10
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_audit_update_record
;
2017-01-12 deposited with the CCDC.
2017-03-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.4380(13)
_cell_length_b                   17.711(2)
_cell_length_c                   27.475(3)
_cell_measurement_reflns_used    6037
_cell_measurement_temperature    100.0(2)
_cell_measurement_theta_max      27.113
_cell_measurement_theta_min      2.383
_cell_volume                     5079.2(10)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0526
_diffrn_reflns_av_unetI/netI     0.0418
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            33633
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         27.243
_diffrn_reflns_theta_min         2.300
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.224
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.5097
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.1580 before and 0.0524 after correction.
The Ratio of minimum to maximum transmission is 0.6837.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.786
_exptl_crystal_description       block
_exptl_crystal_F_000             2596
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.692
_refine_diff_density_min         -0.649
_refine_diff_density_rms         0.127
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         5651
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0476
_refine_ls_R_factor_gt           0.0297
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0211P)^2^+2.3996P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0585
_refine_ls_wR_factor_ref         0.0622
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3880
_reflns_number_total             5651
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt00485k2.cif
_cod_data_source_block           pbca
_cod_depositor_comments
'Adding full bibliography for 7042355--7042360.cif.'
_cod_original_cell_volume        5079.3(10)
_cod_original_formula_sum        'C7.25 H27.50 Au B20 Cl3.50 P'
_cod_database_code               7042359
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All B(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C11(H11A,H11B)
2.b Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C)
;
_shelx_res_checksum              15524
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'