Synthesis of Unsymmetrical B2E2 and B2E3 Heterocycles by Borylene Insertion into Boradichalcogeniranes
Liu, Siyuan; Légaré, Marc-André; Hofmann, Alexander; Rempel, Anna; Hagspiel, Stephan; Braunschweig, Holger; Chemical Science  (2019) –; doi:10.1039/C9SC00657E

data_1550755
_publ_section_title
;
 Synthesis of Unsymmetrical B2E2 and B2E3 Heterocycles by Borylene
 Insertion into Boradichalcogeniranes
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/C9SC00657E
_journal_year                    2019
_chemical_formula_moiety         'C15 H35 B2 N3 Se2 Si2'
_chemical_formula_sum            'C15 H35 B2 N3 Se2 Si2'
_chemical_formula_weight         493.18
_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'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2018-12-20 deposited with the CCDC.    2019-03-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 109.60(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.500(5)
_cell_length_b                   12.544(6)
_cell_length_c                   16.944(7)
_cell_measurement_reflns_used    2992
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.33
_cell_measurement_theta_min      2.48
_cell_volume                     2302.6(18)
_computing_cell_refinement       'Saint+ ver. V8.37A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2014.9 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. V8.37A (Bruker AXS)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD area detector (Apex2)'
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker X8-APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1041
_diffrn_reflns_av_unetI/netI     0.0713
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            27381
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         26.017
_diffrn_reflns_theta_min         1.885
_diffrn_source                   'rotating-anode (Nonius FR-591)'
_exptl_absorpt_coefficient_mu    3.319
_exptl_absorpt_correction_T_max  0.5256
_exptl_absorpt_correction_T_min  0.3432
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SadAbs 2016/2 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.423
_exptl_crystal_description       plate
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.412
_exptl_crystal_size_mid          0.388
_exptl_crystal_size_min          0.146
_refine_diff_density_max         0.671
_refine_diff_density_min         -0.519
_refine_diff_density_rms         0.119
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         4531
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0668
_refine_ls_R_factor_gt           0.0394
_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^)+(0.0405P)^2^+0.2246P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0848
_refine_ls_wR_factor_ref         0.0956
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3357
_reflns_number_total             4531
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9sc00657e2.cif
_cod_data_source_block           AlHo054_a
_cod_original_cell_volume        2302.8(18)
_cod_database_code               1550755
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.342
_shelx_estimated_absorpt_t_max   0.643
_shelx_res_checksum              89545