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_4132667
_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         'C16.67 H22.67 B0.67 N2'
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_space_group_crystal_system      orthorhombic
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_space_group_name_Hall           '-P 2n 2ab'
_space_group_name_H-M_alt        'P b c n'
_atom_sites_solution_hydrogens   mixed
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_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            12
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_cell_length_b                   8.1656(8)
_cell_length_c                   18.9301(18)
_cell_measurement_reflns_used    9886
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.40
_cell_measurement_theta_min      2.26
_cell_volume                     4594.8(8)
_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)'
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_diffrn_ambient_temperature      100(2)
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_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  0.0557
_diffrn_reflns_av_unetI/netI     0.0224
_diffrn_reflns_Laue_measured_fraction_full 1.000
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_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -36
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_diffrn_reflns_limit_k_min       -9
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_diffrn_reflns_limit_l_min       -22
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_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.498
_diffrn_reflns_theta_min         2.152
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6526
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
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_exptl_crystal_description       block
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_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
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_refine_diff_density_min         -0.272
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_refine_ls_extinction_coef       0.0132(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     283
_refine_ls_number_reflns         4268
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0579
_refine_ls_R_factor_gt           0.0460
_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^)+(0.0467P)^2^+2.7340P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1105
_refine_ls_wR_factor_ref         0.1178
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3554
_reflns_number_total             4268
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b05398_si_002.cif
_cod_data_source_block           copr030_0ma
_cod_original_cell_volume        4594.8(7)
_cod_database_code               4132667
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              54238
_shelx_hkl_checksum              6357