Transition Metal-Catalyzed Formation of Boron-Nitrogen Bonds: Catalytic Dehydrocoupling of Amine-Borane Adducts to Form Aminoboranes and Borazines
Cory A. Jaska; Karen Temple; Alan J. Lough; Ian Manners; Journal of the American Chemical Society 125 (2003) 9424–9434; doi:10.1021/ja030160l

data_4114005
_publ_section_title
;
 Transition Metal-Catalyzed Formation of Boron-Nitrogen Bonds: Catalytic
 Dehydrocoupling of Amine-Borane Adducts to Form Aminoboranes and
 Borazines
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9424
_journal_page_last               9434
_journal_paper_doi               10.1021/ja030160l
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C18 H18 B3 N3'
_chemical_formula_weight         308.78
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.7831(2)
_cell_length_b                   19.9186(3)
_cell_length_c                   10.9654(7)
_cell_measurement_reflns_used    1684
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.6
_cell_volume                     1699.95(12)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2002)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'SHELXTL V6.12 (Sheldrick, 2001)'
_computing_publication_material  'SHELXTL V6.12 (Sheldrick, 2001)'
_computing_structure_refinement  'SHELXTL V6.12 (Sheldrick, 2001)'
_computing_structure_solution    'SHELXTL V6.12 (Sheldrick, 2001)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0306
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            1572
_diffrn_reflns_theta_full        25.07
_diffrn_reflns_theta_max         25.07
_diffrn_reflns_theta_min         2.81
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.207
_exptl_crystal_description       plate
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.118
_refine_diff_density_min         -0.111
_refine_diff_density_rms         0.027
_refine_ls_extinction_coef       0.024(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     230
_refine_ls_number_reflns         1572
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0318
_refine_ls_R_factor_gt           0.0291
_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^)+(0.0409P)^2^+0.1397P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0702
_refine_ls_wR_factor_ref         0.0719
_reflns_number_gt                1481
_reflns_number_total             1572
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja030160l_2.cif
_cod_data_source_block           k01197a
_cod_database_code               4114005