Olefin-Borane "van der Waals Complexes": Intermediates in Frustrated Lewis Pair Addition Reactions
Xiaoxi Zhao; Douglas W. Stephan; Journal of the American Chemical Society 133 (2011) 12448–12450; doi:10.1021/ja205598k

data_4106589
_publ_section_title
;
 Olefin-Borane "van der Waals Complexes": Intermediates in Frustrated
 Lewis Pair Addition Reactions
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12448
_journal_page_last               12450
_journal_paper_doi               10.1021/ja205598k
_journal_volume                  133
_journal_year                    2011
_chemical_formula_sum            'C28 H34 B F10 P'
_chemical_formula_weight         602.33
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 105.199(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.4645(4)
_cell_length_b                   14.2814(5)
_cell_length_c                   17.6884(6)
_cell_measurement_reflns_used    4664
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      24.71
_cell_measurement_theta_min      2.39
_cell_volume                     2794.80(17)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0434
_diffrn_reflns_av_sigmaI/netI    0.0486
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            24548
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    0.182
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6488
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.432
_exptl_crystal_description       block
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.596
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         6389
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0996
_refine_ls_R_factor_gt           0.0632
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0853P)^2^+2.2781P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1632
_refine_ls_wR_factor_ref         0.1845
_reflns_number_gt                4271
_reflns_number_total             6389
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja205598k_si_078.cif
_cod_data_source_block           xz078_0m
_cod_database_code               4106589