Increasing the Brønsted acidity of Ph2PO2H by the Lewis acid B(C6F5)3. Formation of an eight-membered boraphosphinate ring [Ph2POB(C6F5)2O]2.
Kather, Ralf; Rychagova, Elena; Sanz Camacho, Paula; Ashbrook, Sharon E.; Woollins, J. Derek; Robben, Lars; Lork, Enno; Ketkov, Sergey; Beckmann, Jens; Chemical communications (Cambridge, England) 52 (2016) 10992–10995; doi:10.1039/c6cc06102h

data_7125009
_publ_section_title
;
 Increasing the Br\/onsted acidity of Ph2PO2H by the Lewis acid B(C6F5)3.
 Formation of an eight-membered boraphosphinate ring [Ph2POB(C6F5)2O]2.
;
_journal_issue                   73
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              10992
_journal_page_last               10995
_journal_paper_doi               10.1039/c6cc06102h
_journal_volume                  52
_journal_year                    2016
_chemical_formula_moiety         'C18 H22 I P Te'
_chemical_formula_sum            'C18 H22 I P Te'
_chemical_formula_weight         523.85
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_doi                 10.5517/cc1jccmw
_audit_update_record
;
2015-07-07 deposited with the CCDC.
2016-08-18 downloaded from the CCDC.
;
_cell_angle_alpha                90.0000
_cell_angle_beta                 99.976(3)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   7.9634(12)
_cell_length_b                   14.047(2)
_cell_length_c                   16.871(3)
_cell_measurement_reflns_used    5174
_cell_measurement_temperature    93
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      1.90
_cell_volume                     1858.7(5)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b29'
_computing_data_collection
'CrystalClear-SM Expert 2.1 b29 (Rigaku, 2013)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b29'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2013)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'DIRDIF99-PATTY (Gould, et al., 1999)'
_diffrn_ambient_temperature      93
_diffrn_detector_area_resol_mean 5.811
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.1231
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            24025
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         1.90
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.341
_exptl_absorpt_correction_T_max  0.716
_exptl_absorpt_correction_T_min  0.295
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.872
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1000.00
_exptl_crystal_size_max          0.100
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_refine_diff_density_max         1.43
_refine_diff_density_min         -1.11
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     194
_refine_ls_number_reflns         3444
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.0341
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0638P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1156
_reflns_number_gt                2901
_reflns_number_total             3444
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c6cc06102h3.cif
_cod_data_source_block           SANDW13
_cod_database_code               7125009