Selective one- and two-electron reductions of a haloborane enabled by a π-withdrawing carbene ligand.
Roy, Dipak Kumar; Krummenacher, Ivo; Stennett, Tom E.; Lenczyk, Carsten; Thiess, Torsten; Welz, Eileen; Engels, Bernd; Braunschweig, Holger; Chemical communications (Cambridge, England) 54 (2018) 9015–9018; doi:10.1039/c8cc03433h

data_7121927
_publ_section_title
;
 Selective one- and two-electron reductions of a haloborane enabled by a
 \p-withdrawing carbene ligand.
;
_journal_issue                   65
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              9015
_journal_page_last               9018
_journal_paper_doi               10.1039/c8cc03433h
_journal_volume                  54
_journal_year                    2018
_chemical_formula_moiety         'C29 H34 B F5 N'
_chemical_formula_sum            'C29 H34 B F5 N'
_chemical_formula_weight         502.38
_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'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-04-24 deposited with the CCDC.
2018-07-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.565(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.7509(4)
_cell_length_b                   10.5075(7)
_cell_length_c                   31.1985(19)
_cell_measurement_reflns_used    9863
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.71
_cell_measurement_theta_min      2.34
_cell_volume                     2539.9(3)
_computing_cell_refinement       'Saint+ ver. V8.34A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2014.9 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. V8.34A (Bruker AXS)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CMOS area detector (Photon 100)'
_diffrn_detector_area_resol_mean 10.24
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 Quest'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0507
_diffrn_reflns_av_unetI/netI     0.0356
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            37502
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         26.372
_diffrn_reflns_theta_min         2.337
_diffrn_source                   'microfocus sealed tube (Incoatec ImS)'
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6512
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SadAbs 2014/5 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_description       needle
_exptl_crystal_F_000             1060
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.268
_refine_diff_density_min         -0.412
_refine_diff_density_rms         0.090
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     336
_refine_ls_number_reflns         5185
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0790
_refine_ls_R_factor_gt           0.0524
_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^)+(0.0563P)^2^+2.2079P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1205
_refine_ls_wR_factor_ref         0.1369
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3924
_reflns_number_total             5185
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8cc03433h2.cif
_cod_data_source_block           test_a_CCDC2
_cod_depositor_comments
'Adding full bibliography for 7121923--7121927.cif.'
_cod_database_code               7121927
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.961
_shelx_estimated_absorpt_t_max   0.991
_shelx_res_checksum              6970