Formation of Reactive π-Conjugated Frustrated N/B Pairs by Borane-Induced Propargyl Amine Rearrangement.
Wang, Tongdao; Daniliuc, Constantin G.; Mück-Lichtenfeld, Christian; Kehr, Gerald; Erker, Gerhard; Journal of the American Chemical Society 140 (2018) 3635–3643; doi:10.1021/jacs.7b11958

data_4131869
_publ_section_title
;
 Formation of Reactive \p-Conjugated Frustrated N/B Pairs by
 Borane-Induced Propargyl Amine Rearrangement.
;
_journal_issue                   10
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3635
_journal_page_last               3643
_journal_paper_doi               10.1021/jacs.7b11958
_journal_volume                  140
_journal_year                    2018
_chemical_formula_sum            'C30 H21 B F15 N'
_chemical_formula_weight         691.29
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                90
_cell_angle_beta                 108.385(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   16.6005(8)
_cell_length_b                   15.9553(8)
_cell_length_c                   22.3028(10)
_cell_measurement_reflns_used    7047
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      66.5392
_cell_measurement_theta_min      3.9434
_cell_volume                     5605.7(5)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 v.2014.1--1 (Bruker AXS Inc., 2014)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'APEX2 v.2014.1--1 (Bruker AXS Inc., 2014)'
_computing_publication_material  'APEX2 v.2014.1--1 (Bruker AXS Inc., 2014)'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL--2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'KappaCCD APEXII'
_diffrn_measurement_method       'phi / omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.1094
_diffrn_reflns_av_unetI/netI     0.0952
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            55025
_diffrn_reflns_theta_full        66.70
_diffrn_reflns_theta_max         66.70
_diffrn_reflns_theta_min         3.47
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.484
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.75
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Bruker AXS (2014). SADABS, Version 2014/2, Bruker AXS Inc., Madison, Wisconsin,
USA.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.638
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2784
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.468
_refine_diff_density_min         -0.328
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     855
_refine_ls_number_reflns         9764
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.1005
_refine_ls_R_factor_gt           0.0554
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0428P)^2^+5.3254P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1292
_refine_ls_wR_factor_ref         0.1527
_reflns_number_gt                6088
_reflns_number_total             9764
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b11958_si_003.cif
_cod_data_source_block           erk8299
_cod_database_code               4131869
_shelx_res_checksum              40317
_shelx_hkl_checksum              65855