Diamidocarbene Induced B–H Activation: A New Class of Initiator-Free Olefin Hydroboration Reagents
Lastovickova, Dominika N.; Bielawski, Christopher W.; Organometallics 35 (2016) 706–; doi:10.1021/acs.organomet.5b00997

data_4088310
_publ_section_title
;
 Diamidocarbene Induced B--H Activation: A New Class of Initiator-Free
 Olefin Hydroboration Reagents
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              706
_journal_paper_doi               10.1021/acs.organomet.5b00997
_journal_volume                  35
_journal_year                    2016
_chemical_formula_moiety         'C30 H41 B1 N2 O4'
_chemical_formula_sum            'C30 H41 B N2 O4'
_chemical_formula_weight         504.46
_chemical_name_common            'DAC-bpin (4)'
_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
_cell_angle_alpha                82.73(2)
_cell_angle_beta                 86.70(3)
_cell_angle_gamma                82.128(18)
_cell_formula_units_Z            2
_cell_length_a                   8.119(2)
_cell_length_b                   11.875(3)
_cell_length_c                   14.958(5)
_cell_measurement_reflns_used    656
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      136.509
_cell_measurement_theta_min      50.801
_cell_volume                     1415.9(7)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.1 b45 (Rigaku, 2015)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.1 b45 (Rigaku, 2015)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.1 b45 (Rigaku, 2015)
;
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Rigaku Pilatus 200K'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0388
_diffrn_reflns_av_unetI/netI     0.0273
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            25486
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        67.687
_diffrn_reflns_theta_max         68.368
_diffrn_reflns_theta_min         6.641
_exptl_absorpt_coefficient_mu    0.611
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8830
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Abscor. T. Higashi (2001). The Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.183
_exptl_crystal_description       block
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.584
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     346
_refine_ls_number_reflns         5148
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0601
_refine_ls_R_factor_gt           0.0460
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0749P)^2^+0.5658P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1255
_refine_ls_wR_factor_ref         0.1328
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4073
_reflns_number_total             5148
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00997_si_002.cif
_cod_data_source_block           DAC-bpin
_cod_database_code               4088310
_shelxl_version_number           2014-3
_shelx_res_checksum              89760
_shelx_hkl_checksum              29196