Borata-alkene derivatives conveniently made by frustrated Lewis pair chemistry.
Möbus, Juri; Kehr, Gerald; Daniliuc, Constantin G.; Fröhlich, Roland; Erker, Gerhard; Dalton transactions (Cambridge, England : 2003) 43 (2014) 632–638; doi:10.1039/c3dt52373j

data_7028200
_publ_section_title
;
 Borata-alkene derivatives conveniently made by frustrated Lewis pair
 chemistry.
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              632
_journal_page_last               638
_journal_paper_doi               10.1039/c3dt52373j
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C25 H33 P'
_chemical_formula_weight         364.48
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 108.3410(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.95660(10)
_cell_length_b                   9.47770(10)
_cell_length_c                   15.61850(10)
_cell_measurement_reflns_used    1956
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      0.88
_cell_volume                     2382.53(4)
_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 0.960
_diffrn_measured_fraction_theta_max 0.960
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.047
_diffrn_reflns_av_sigmaI/netI    0.0549
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            6371
_diffrn_reflns_theta_full        66.76
_diffrn_reflns_theta_max         66.76
_diffrn_reflns_theta_min         5.42
_exptl_absorpt_coefficient_mu    1.032
_exptl_absorpt_correction_T_max  0.9796
_exptl_absorpt_correction_T_min  0.8861
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.016
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.180
_refine_diff_density_min         -0.179
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.48(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         3532
_refine_ls_number_restraints     32
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0759
_refine_ls_R_factor_gt           0.0576
_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^)+(0.0489P)^2^+2.4542P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1289
_refine_ls_wR_factor_ref         0.1424
_reflns_number_gt                2848
_reflns_number_total             3532
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt52373j.txt
_cod_data_source_block           erk7186
_cod_original_cell_volume        2382.53(3)
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7028200