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_4132660
_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         'C30 H34 B Cr N3 O5'
_chemical_formula_sum            'C30 H34 B Cr N3 O5'
_chemical_formula_weight         579.41
_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
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 110.324(19)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.203(7)
_cell_length_b                   10.435(4)
_cell_length_c                   17.352(6)
_cell_measurement_reflns_used    4263
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.22
_cell_measurement_theta_min      2.32
_cell_volume                     2921(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 1.000
_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  0.1496
_diffrn_reflns_av_unetI/netI     0.0788
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            35984
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.099
_diffrn_reflns_theta_max         25.099
_diffrn_reflns_theta_min         2.063
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.435
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6539
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_description       block
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.392
_refine_diff_density_min         -0.340
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     369
_refine_ls_number_reflns         5200
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0914
_refine_ls_R_factor_gt           0.0478
_refine_ls_shift/su_max          0.041
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0261P)^2^+3.2069P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0848
_refine_ls_wR_factor_ref         0.0993
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3533
_reflns_number_total             5200
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b05398_si_002.cif
_cod_data_source_block           copr004_0m
_cod_original_cell_volume        2921.1(19)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4132660
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.6539
_shelx_estimated_absorpt_t_max   0.7456
_shelx_res_checksum              66015
_shelx_hkl_checksum              63923