Enamine/butadienylborane cycloaddition in the frustrated Lewis pair regime.
Chen, Guo-Qiang; Türkyilmaz, Fatma; Daniliuc, Constantin G.; Bannwarth, Christoph; Grimme, Stefan; Kehr, Gerald; Erker, Gerhard; Organic & biomolecular chemistry 13 (2015) 10477–10486; doi:10.1039/c5ob01602a

data_7154651
_publ_section_title
;
 Enamine/butadienylborane cycloaddition in the frustrated Lewis pair
 regime.
;
_journal_issue                   42
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              10477
_journal_page_last               10486
_journal_paper_doi               10.1039/c5ob01602a
_journal_volume                  13
_journal_year                    2015
_chemical_formula_sum            'C27 H24 B F10 N'
_chemical_formula_weight         563.28
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-07-07 deposited with the CCDC.
2015-08-19 downloaded from the CCDC.
;
_cell_angle_alpha                93.7870(13)
_cell_angle_beta                 92.7690(12)
_cell_angle_gamma                102.9490(12)
_cell_formula_units_Z            2
_cell_length_a                   10.0839(3)
_cell_length_b                   10.3125(3)
_cell_length_c                   11.7098(3)
_cell_measurement_reflns_used    7800
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      68.274
_cell_measurement_theta_min      3.791
_cell_volume                     1181.65(6)
_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    'XP (Sheldrick, 2014)'
_computing_publication_material  'SHELXL-2014 (Sheldrick, 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 10.4167
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker D8 Venture PHOTON 100 CMOS'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'MX mirror'
_diffrn_radiation_source         'micro focus tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0314
_diffrn_reflns_av_sigmaI/netI    0.0350
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            13126
_diffrn_reflns_theta_full        68.25
_diffrn_reflns_theta_max         68.25
_diffrn_reflns_theta_min         3.79
_exptl_absorpt_coefficient_mu    1.293
_exptl_absorpt_correction_T_max  0.80
_exptl_absorpt_correction_T_min  0.71
_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            'pale yellow'
_exptl_crystal_density_diffrn    1.583
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     353
_refine_ls_number_reflns         4285
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0450
_refine_ls_R_factor_gt           0.0387
_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^)+(0.0508P)^2^+0.6970P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0984
_refine_ls_wR_factor_ref         0.1030
_reflns_number_gt                3710
_reflns_number_total             4285
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ob01602a2.cif
_cod_data_source_block           erk7717
_cod_depositor_comments
'Adding full bibliography for 7154649--7154656.cif.'
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7154651