Preparation of Dihydroborole Derivatives by a Simple 1,1-Carboboration Route
Feldmann, Andreas; Iida, Azusa; Fröhlich, Roland; Yamaguchi, Shigehiro; Kehr, Gerald; Erker, Gerhard; Organometallics 31 (2012) 2445–; doi:10.1021/om300065m

data_4076589
_publ_section_title
;
 Preparation of Dihydroborole Derivatives by a Simple 1,1-Carboboration
 Route
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              2445
_journal_paper_doi               10.1021/om300065m
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C28.5 H20 B F15 Si'
_chemical_formula_weight         686.35
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                92.161(3)
_cell_angle_beta                 102.917(2)
_cell_angle_gamma                100.476(4)
_cell_formula_units_Z            2
_cell_length_a                   7.4428(2)
_cell_length_b                   12.5739(10)
_cell_length_c                   16.1379(5)
_cell_measurement_reflns_used    4631
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      0.88
_cell_volume                     1442.67(13)
_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 0.967
_diffrn_measured_fraction_theta_max 0.967
_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  0.036
_diffrn_reflns_av_sigmaI/netI    0.0191
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            21478
_diffrn_reflns_theta_full        66.82
_diffrn_reflns_theta_max         66.82
_diffrn_reflns_theta_min         4.38
_exptl_absorpt_coefficient_mu    1.810
_exptl_absorpt_correction_T_max  0.6407
_exptl_absorpt_correction_T_min  0.5699
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.580
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             690
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.285
_refine_diff_density_min         -0.318
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     439
_refine_ls_number_reflns         4930
_refine_ls_number_restraints     37
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0419
_refine_ls_R_factor_gt           0.0409
_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^)+(0.0621P)^2^+0.6392P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1133
_refine_ls_wR_factor_ref         0.1144
_reflns_number_gt                4763
_reflns_number_total             4930
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300065m_si_006.cif
_cod_data_source_block           erk6334
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C28.50 H20 B F15 Si'
_cod_database_code               4076589