Complexation and Release of N-Heterocyclic Carbene-Aminoborylene Ligands from Group VI and VIII Metals.
Pranckevicius, Conor; Jimenéz-Halla, J Oscar C; Kirsch, Marius; Krummenacher, Ivo; Braunschweig, Holger; Journal of the American Chemical Society 140 (2018) 10524–10529; doi:10.1021/jacs.8b05398

data_4132670
_publ_section_title
;
 Complexation and Release of N-Heterocyclic Carbene-Aminoborylene Ligands
 from Group VI and VIII Metals.
;
_journal_issue                   33
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10524
_journal_page_last               10529
_journal_paper_doi               10.1021/jacs.8b05398
_journal_volume                  140
_journal_year                    2018
_chemical_formula_moiety         'C26 H49 B Cl N2 Si2'
_chemical_formula_sum            'C26 H49 B Cl N2 Si2'
_chemical_formula_weight         492.11
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                98.295(19)
_cell_angle_beta                 92.95(3)
_cell_angle_gamma                117.259(18)
_cell_formula_units_Z            2
_cell_length_a                   9.180(8)
_cell_length_b                   9.199(7)
_cell_length_c                   20.177(16)
_cell_measurement_reflns_used    9509
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.69
_cell_measurement_theta_min      2.53
_cell_volume                     1485(2)
_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    'Mercury 2017'
_computing_publication_material  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0305
_diffrn_reflns_av_unetI/netI     0.0207
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            63724
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.628
_diffrn_reflns_theta_min         2.059
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.225
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.7182
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadbs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.100
_exptl_crystal_description       block
_exptl_crystal_F_000             538
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.447
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     303
_refine_ls_number_reflns         9092
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0400
_refine_ls_R_factor_gt           0.0325
_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^)+(0.0325P)^2^+0.6781P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0790
_refine_ls_wR_factor_ref         0.0835
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7972
_reflns_number_total             9092
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b05398_si_002.cif
_cod_data_source_block           cp035_0m
_cod_database_code               4132670
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              42381
_shelx_hkl_checksum              98687