Facile Insertion of a Cyclic Alkyl(Amino) Carbene Carbon into the B-B Bond of Diboron(4) Reagents
Eichhorn, Antonius; Kuehn, Laura; Marder, Todd B.; Radius, Udo; Chem. Commun.  (2017) –; doi:10.1039/C7CC06302D

data_7120740
_publ_section_title
;
 Facile Insertion of a Cyclic Alkyl(Amino) Carbene Carbon into the B-B
 Bond of Diboron(4) Reagents
;
_journal_name_full               'Chem. Commun.'
_journal_paper_doi               10.1039/C7CC06302D
_journal_year                    2017
_chemical_formula_moiety         'C24 H39 B2 N O4'
_chemical_formula_sum            'C24 H39 B2 N O4'
_chemical_formula_weight         427.18
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_audit_update_record
;
2017-08-08 deposited with the CCDC.
2017-10-03 downloaded from the CCDC.
;
_cell_angle_alpha                113.046(2)
_cell_angle_beta                 95.252(2)
_cell_angle_gamma                95.926(2)
_cell_formula_units_Z            4
_cell_length_a                   9.5144(9)
_cell_length_b                   15.1352(14)
_cell_length_c                   18.5970(17)
_cell_measurement_reflns_used    7064
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.965
_cell_measurement_theta_min      2.175
_cell_volume                     2425.5(4)
_computing_cell_refinement       'Saint-NT v. 7.23'
_computing_data_collection       'APEX2 ver. 2014.1 (Bruker AXS)'
_computing_data_reduction        'Saint-NT v. 7.23'
_computing_molecular_graphics    'XP ver. 5.1 (Bruker AXS, 1998)'
_computing_publication_material  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker X8-APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  helios
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0253
_diffrn_reflns_av_unetI/netI     0.0432
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            21765
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         26.039
_diffrn_reflns_theta_min         1.202
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6778
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details   'Sadabs 2014/3 (Bruker 2014)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_description       block
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.230
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.291
_refine_diff_density_min         -0.265
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.011
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     575
_refine_ls_number_reflns         9509
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0685
_refine_ls_R_factor_gt           0.0428
_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^)+(0.0451P)^2^+0.8594P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0945
_refine_ls_wR_factor_ref         0.1066
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7022
_reflns_number_total             9509
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7cc06302d2.cif
_cod_data_source_block           compound_4
_cod_database_code               7120740
_shelx_estimated_absorpt_t_min   0.983
_shelx_estimated_absorpt_t_max   0.997
_shelxl_version_number           2014/6
_shelx_res_checksum              74467