Rhodium-Catalyzed Dehydrocoupling of the Sterically Encumbered Phosphine-Borane Adduct tBu2PH.BH3: Synthesis of the Linear Dimers tBu2PH-BH2-tBu2P-BH3 and tBu2PH-BH2-tBu2P-BH2Cl
Hendrik Dorn; Emira Vejzovic; Alan J. Lough; Ian Manners; Inorganic Chemistry 40 (2001) 4327–4331; doi:10.1021/ic0100626

data_4320055
_publ_section_title
;
 Rhodium-Catalyzed Dehydrocoupling of the Sterically Encumbered
 Phosphine-Borane Adduct tBu2PH.BH3: Synthesis of the Linear Dimers
 tBu2PH-BH2-tBu2P-BH3 and tBu2PH-BH2-tBu2P-BH2Cl
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4327
_journal_page_last               4331
_journal_paper_doi               10.1021/ic0100626
_journal_volume                  40
_journal_year                    2001
_chemical_formula_sum            'C16 H42 B2 P2'
_chemical_formula_weight         318.06
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                87.2910(14)
_cell_angle_beta                 76.9920(16)
_cell_angle_gamma                70.411(2)
_cell_formula_units_Z            2
_cell_length_a                   8.8850(2)
_cell_length_b                   11.1510(4)
_cell_length_c                   11.3390(4)
_cell_measurement_reflns_used    4705
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.54
_cell_measurement_theta_min      2.60
_cell_volume                     1030.76(6)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL V5.1'
_computing_publication_material  'Bruker SHELXTL V5.1'
_computing_structure_refinement  'Bruker SHELXTL V5.1'
_computing_structure_solution    'Bruker SHELXTL V5.1'
_diffrn_ambient_temperature      150(1)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.040
_diffrn_reflns_av_sigmaI/netI    0.0630
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            11323
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         2.60
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    0.202
_exptl_absorpt_correction_T_max  0.9492
_exptl_absorpt_correction_T_min  0.9344
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Denzo-SMN (Otwinowski & Minor, 1997)'
_exptl_crystal_density_diffrn    1.025
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.267
_refine_diff_density_min         -0.315
_refine_diff_density_rms         0.050
_refine_ls_extinction_coef       0.011(3)
_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   1.055
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         4705
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0605
_refine_ls_R_factor_gt           0.0396
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0320P)^2^+0.1835P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0891
_refine_ls_wR_factor_ref         0.0975
_reflns_number_gt                3626
_reflns_number_total             4705
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0100626_2.cif
_cod_data_source_block           k00285
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_formula_sum        'C16 H6 H36 B2 P2'
_cod_database_code               4320055