Synthesis and Characterization of B-Heterocyclic π-Radical and Its Reactivity as a Boryl Radical
Yoshitaka Aramaki; Hideki Omiya; Makoto Yamashita; Koji Nakabayashi; Shin-ichi Ohkoshi; Kyoko Nozaki; Journal of the American Chemical Society 134 (2012) 19989–19992; doi:10.1021/ja3094372

data_4118988
_publ_section_title
;
 Synthesis and Characterization of B-Heterocyclic \p-Radical and Its
 Reactivity as a Boryl Radical
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              19989
_journal_page_last               19992
_journal_paper_doi               10.1021/ja3094372
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C42 H58 B F N2 O2'
_chemical_formula_weight         652.71
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 125.035(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   23.803(6)
_cell_length_b                   24.237(5)
_cell_length_c                   16.560(4)
_cell_measurement_reflns_used    8551
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      30.9547
_cell_measurement_theta_min      1.5005
_cell_volume                     7823(3)
_computing_cell_refinement       'RIGAKU CrystalClear'
_computing_data_collection       'RIGAKU CrystalClear'
_computing_data_reduction        'RIGAKU CrystalClear'
_computing_molecular_graphics    ORTEP-III
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      103(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'RIGAKU/MSC Mercury CCD'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0295
_diffrn_reflns_av_sigmaI/netI    0.0354
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            30775
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.34
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.108
_exptl_crystal_description       Block
_exptl_crystal_F_000             2832
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.327
_refine_diff_density_min         -0.195
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         8989
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0941
_refine_ls_R_factor_gt           0.0605
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0914P)^2^+1.4125P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1629
_refine_ls_wR_factor_ref         0.1878
_reflns_number_gt                5884
_reflns_number_total             8989
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja3094372_si_002_4.cif
_cod_data_source_block           5
_cod_database_code               4118988