NHC-Stabilized 1-Hydro-1H-borole and Its Nondegenerate Sigmatropic Isomers
Holger Braunschweig; Ching-Wen Chiu; Thomas Kupfer; Krzysztof Radacki; Inorganic Chemistry 50 (2011) 4247–4249; doi:10.1021/ic200533e

data_4325127
_publ_contact_author_address
; Institut fuer Anorganische Chemie
Universitaet Wuerzburg
Am Hubland
97074 Wuerzburg, Germany
;
_publ_contact_author_email       H.Braunschweig@mail.uni-wuerzburg.de
_publ_contact_author_fax         +49-931-31-84623
_publ_contact_author_name        'Prof. Dr. Holger Braunschweig'
_publ_contact_author_phone       +49-931-31-85260
_publ_section_title
;
 NHC-Stabilized 1-Hydro-1H-borole and Its Nondegenerate Sigmatropic
 Isomers
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4247
_journal_page_last               4249
_journal_paper_doi               10.1021/ic200533e
_journal_volume                  50
_journal_year                    2011
_chemical_formula_moiety         'C49 H47 B N2'
_chemical_formula_sum            'C49 H47 B N2'
_chemical_formula_weight         674.70
_chemical_name_common
;
?
;
_chemical_name_systematic
; 
?
;
_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                 95.482(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.8006(8)
_cell_length_b                   18.2005(13)
_cell_length_c                   21.5781(17)
_cell_measurement_reflns_used    4821
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.81
_cell_measurement_theta_min      2.37
_cell_volume                     3831.4(5)
_computing_cell_refinement       'Saint+ ver. 7.53A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2008.3 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. 7.53A (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_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.920
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0621
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            8857
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         28.35
_diffrn_reflns_theta_min         1.47
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  0.745685
_exptl_absorpt_correction_T_min  0.638707
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'TwinAbs 2008/3 (Brucker 2008)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_description       needle
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.426
_refine_diff_density_min         -0.235
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.171
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     552
_refine_ls_number_reflns         8857
_refine_ls_number_restraints     602
_refine_ls_restrained_S_all      1.157
_refine_ls_R_factor_all          0.1029
_refine_ls_R_factor_gt           0.0699
_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^)+(0.0416P)^2^+2.1229P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1316
_refine_ls_wR_factor_ref         0.1454
_reflns_number_gt                6945
_reflns_number_total             8857
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic200533e_si_001_2.cif
_cod_data_source_block           2CH
_cod_database_code               4325127