Quaternizing Diboranes(4): Highly Divergent Outcomes and an Inorganic Wagner-Meerwein Rearrangement
Holger Braunschweig; Alexander Damme; Rian D. Dewhurst; Thomas Kramer; Thomas Kupfer; Krzysztof Radacki; Eva Siedler; Alexandra Trumpp; Katharina Wagner; Christine Werner; Journal of the American Chemical Society 135 (2013) 8702–8707; doi:10.1021/ja403037k

data_4119901
_publ_contact_author_address
; Institut f\"ur Anorganische Chemie
Universit\"at W\"urzburg
Am Hubland
97074 W\"urzburg, Germany
;
_publ_contact_author_email       H.Braunschweig@mail.uni-wuerzburg.de
_publ_contact_author_fax         +49-931-3184623
_publ_contact_author_name        'Prof. Dr. Holger Braunschweig'
_publ_contact_author_phone       +49-931-3185260
_publ_section_title
;
 Quaternizing Diboranes(4): Highly Divergent Outcomes and an Inorganic
 Wagner-Meerwein Rearrangement
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8702
_journal_page_last               8707
_journal_paper_doi               10.1021/ja403037k
_journal_volume                  135
_journal_year                    2013
_chemical_formula_moiety         'C39 H48 B2 Br2 N2'
_chemical_formula_sum            'C39 H48 B2 Br2 N2'
_chemical_formula_weight         726.23
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 97.2930(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.7256(3)
_cell_length_b                   15.1950(5)
_cell_length_c                   24.2696(6)
_cell_measurement_reflns_used    9993
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.70
_cell_measurement_theta_min      2.50
_cell_volume                     3557.56(18)
_computing_cell_refinement       'Saint+ ver. 7.68A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2010.3 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. 7.68A (Bruker AXS)'
_computing_molecular_graphics    'XP ver. 5.1 (Bruker AXS, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker X8-APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer mirror'
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0412
_diffrn_reflns_av_sigmaI/netI    0.0285
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            70155
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.75
_diffrn_reflns_theta_min         1.58
_exptl_absorpt_coefficient_mu    2.308
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6247
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs 2008/1 (Bruker 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.356
_exptl_crystal_description       block
_exptl_crystal_F_000             1504
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.461
_refine_diff_density_min         -0.837
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     418
_refine_ls_number_reflns         7545
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0455
_refine_ls_R_factor_gt           0.0340
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0405P)^2^+5.4546P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0864
_refine_ls_wR_factor_ref         0.0909
_reflns_number_gt                6345
_reflns_number_total             7545
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja403037k_si_001_07.cif
_cod_data_source_block           12b
_cod_database_code               4119901