Frustrated lewis pair modification by 1,1-carboboration: disclosure of a phosphine oxide triggered nitrogen monoxide addition to an intramolecular p/b frustrated lewis pair.
Liedtke, René; Scheidt, Felix; Ren, Jinjun; Schirmer, Birgitta; Cardenas, Allan Jay P.; Daniliuc, Constantin G.; Eckert, Hellmut; Warren, Timothy H.; Grimme, Stefan; Kehr, Gerald; Erker, Gerhard; Journal of the American Chemical Society 136 (2014) 9014–9027; doi:10.1021/ja5028293

data_4122038
_publ_section_title
;
 Frustrated lewis pair modification by 1,1-carboboration: disclosure of a
 phosphine oxide triggered nitrogen monoxide addition to an intramolecular
 p/b frustrated lewis pair.
;
_journal_issue                   25
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9014
_journal_page_last               9027
_journal_paper_doi               10.1021/ja5028293
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C51 H49 B F10 P2 Si'
_chemical_formula_weight         952.74
_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                 102.6980(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.1442(2)
_cell_length_b                   11.9215(2)
_cell_length_c                   24.2551(4)
_cell_measurement_reflns_used    12723
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      4.08
_cell_volume                     5682.38(15)
_computing_cell_refinement       'Collect (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP (BrukerAXS, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'Montel mirror'
_diffrn_radiation_source         'rotating anode Nonius FR591'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.067
_diffrn_reflns_av_sigmaI/netI    0.0627
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            38164
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         4.15
_exptl_absorpt_coefficient_mu    0.160
_exptl_absorpt_correction_T_max  0.9936
_exptl_absorpt_correction_T_min  0.9627
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.114
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1976
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.314
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     597
_refine_ls_number_reflns         11399
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.1142
_refine_ls_R_factor_gt           0.0766
_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^)+(0.0817P)^2^+6.8009P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1871
_refine_ls_wR_factor_ref         0.2069
_reflns_number_gt                7612
_reflns_number_total             11399
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja5028293_si_002.cif
_cod_data_source_block           erk7187
_cod_depositor_comments
'Adding full bibliography for 4122035--4122048.cif.'
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4122038