Nucleophilic Addition and Substitution at Coordinatively Saturated Boron by Facile 1,2-Hydrogen Shuttling onto a Carbene Donor
Braunschweig, Holger; Auerhammer, Dominic; Arrowsmith, Merle; Dewhurst, Rian; JIMENEZ-HALLA, J. OSCAR C.; Kupfer, Thomas; Chem. Sci.  (2017) –; doi:10.1039/C7SC03193A

data_1546759
_publ_section_title
;
 Nucleophilic Addition and Substitution at Coordinatively Saturated Boron
 by Facile 1,2-Hydrogen Shuttling onto a Carbene Donor
;
_journal_name_full               'Chem. Sci.'
_journal_paper_doi               10.1039/C7SC03193A
_journal_year                    2017
_chemical_formula_moiety         'C40 H63 B1 Li1 N1 O3'
_chemical_formula_sum            'C40 H63 B Li N O3'
_chemical_formula_weight         623.70
_chemical_properties_physical
Air-sensitive,Moisture-sensitive,Heat-sensitive,Oxygen-sensitive
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-07-19 deposited with the CCDC.
2017-08-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   17.9286(9)
_cell_length_b                   17.5371(9)
_cell_length_c                   24.5618(13)
_cell_measurement_reflns_used    9954
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.81
_cell_measurement_theta_min      2.32
_cell_volume                     7722.6(7)
_computing_cell_refinement       'Saint+ ver. 7.68A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2014.9 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. 7.68A (Bruker AXS)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2014/6 (Sheldrick, 2014) '
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker X8-APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0763
_diffrn_reflns_av_unetI/netI     0.0385
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            96646
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         27.215
_diffrn_reflns_theta_min         2.322
_diffrn_source
'rotating-anode X-ray tube or sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.7003
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs 2014/4 (Bruker 2014)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.073
_exptl_crystal_description       block
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.557
_exptl_crystal_size_mid          0.428
_exptl_crystal_size_min          0.369
_refine_diff_density_max         0.309
_refine_diff_density_min         -0.299
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     580
_refine_ls_number_reflns         8557
_refine_ls_number_restraints     529
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0818
_refine_ls_R_factor_gt           0.0531
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0460P)^2^+4.9023P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1133
_refine_ls_wR_factor_ref         0.1275
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6222
_reflns_number_total             8557
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7sc03193a2.cif
_cod_data_source_block           6runs_a
_cod_original_formula_sum        'C40 H63 B1 Li1 N1 O3'
_cod_database_code               1546759
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.965
_shelx_estimated_absorpt_t_max   0.976
_exptl_absorpt_special_details
;The crystal was immersed in a film of perfluoropolyether oil, 
mounted on a a glass fiber and transferred to stream of cold nitrogen.
;
_shelx_res_checksum              7802