Borole formation by 1,1-carboboration.
Ge, Fang; Kehr, Gerald; Daniliuc, Constantin G.; Erker, Gerhard; Journal of the American Chemical Society 136 (2014) 68–71; doi:10.1021/ja4110396

data_4120676
_publ_section_title
;
 Borole formation by 1,1-carboboration.
;
_journal_issue                   1
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              68
_journal_page_last               71
_journal_paper_doi               10.1021/ja4110396
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C40 H28 B2 F15 N Si2'
_chemical_formula_weight         885.43
_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                 103.6710(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.0316(4)
_cell_length_b                   14.0496(2)
_cell_length_c                   14.0809(2)
_cell_measurement_reflns_used    6883
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      4.08
_cell_volume                     4042.83(11)
_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  0.043
_diffrn_reflns_av_sigmaI/netI    0.0523
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            22417
_diffrn_reflns_theta_full        28.29
_diffrn_reflns_theta_max         28.29
_diffrn_reflns_theta_min         4.11
_exptl_absorpt_coefficient_mu    0.188
_exptl_absorpt_correction_T_max  0.9944
_exptl_absorpt_correction_T_min  0.9509
_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    1.455
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.320
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     547
_refine_ls_number_reflns         9858
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      1.108
_refine_ls_R_factor_all          0.1261
_refine_ls_R_factor_gt           0.0803
_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^)+(0.0000P)^2^+7.1520P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1326
_refine_ls_wR_factor_ref         0.1559
_reflns_number_gt                6431
_reflns_number_total             9858
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja4110396_si_002.cif
_cod_data_source_block           erk7105
_cod_original_cell_volume        4042.82(11)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4120676