Intramolecular frustrated N/B lewis pairs by enamine hydroboration
Schwendemann, Sina; Fröhlich, Roland; Kehr, Gerald; Erker, Gerhard; Chemical Science 2 (2011) 1842–; doi:10.1039/c1sc00124h

data_1515654
_publ_section_title
;
 Intramolecular frustrated N/B lewis pairs by enamine hydroboration
;
_journal_issue                   9
_journal_name_full               'Chemical Science'
_journal_page_first              1842
_journal_paper_doi               10.1039/c1sc00124h
_journal_volume                  2
_journal_year                    2011
_chemical_formula_sum            'C38 H34 B F10 N'
_chemical_formula_weight         705.47
_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                 111.633(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.6638(3)
_cell_length_b                   16.1258(5)
_cell_length_c                   16.8550(6)
_cell_measurement_reflns_used    6178
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      0.88
_cell_volume                     3452.24(18)
_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 0.982
_diffrn_measured_fraction_theta_max 0.982
_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  0.052
_diffrn_reflns_av_sigmaI/netI    0.0217
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            46576
_diffrn_reflns_theta_full        67.60
_diffrn_reflns_theta_max         67.60
_diffrn_reflns_theta_min         3.93
_exptl_absorpt_coefficient_mu    1.000
_exptl_absorpt_correction_T_max  0.7881
_exptl_absorpt_correction_T_min  0.7535
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       pyramide
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.494
_refine_diff_density_min         -0.442
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     440
_refine_ls_number_reflns         6118
_refine_ls_number_restraints     42
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.0627
_refine_ls_R_factor_gt           0.0546
_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^)+(0.0828P)^2^+1.6324P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1508
_refine_ls_wR_factor_ref         0.1589
_reflns_number_gt                5222
_reflns_number_total             6118
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1sc00124h.txt
_cod_data_source_block           erk5280
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               1515654