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_1550760
_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         'C30 H48 B2 N4 Se2'
_chemical_formula_sum            'C30 H48 B2 N4 Se2'
_chemical_formula_weight         644.26
_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
_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                107.0150(10)
_cell_angle_beta                 93.8670(10)
_cell_angle_gamma                90.0350(10)
_cell_formula_units_Z            2
_cell_length_a                   9.2253(4)
_cell_length_b                   13.3449(5)
_cell_length_c                   14.4581(6)
_cell_measurement_reflns_used    9817
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.47
_cell_volume                     1697.77(12)
_computing_cell_refinement       'Saint+ ver. V8.38A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2014.9 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. V8.38A (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 0.999
_diffrn_measured_fraction_theta_max 0.999
_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
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_diffrn_reflns_av_unetI/netI     0.0178
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            33910
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.682
_diffrn_reflns_theta_min         1.829
_diffrn_source                   'rotating-anode (Nonius FR-591)'
_exptl_absorpt_coefficient_mu    2.201
_exptl_absorpt_correction_T_max  0.4915
_exptl_absorpt_correction_T_min  0.3446
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SadAbs 2016/2 (Bruker AXS)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.260
_exptl_crystal_description       block
_exptl_crystal_F_000             668
_exptl_crystal_size_max          0.555
_exptl_crystal_size_mid          0.41
_exptl_crystal_size_min          0.242
_refine_diff_density_max         0.352
_refine_diff_density_min         -0.226
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     357
_refine_ls_number_reflns         6448
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0202
_refine_ls_R_factor_gt           0.0186
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0175P)^2^+0.9740P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0447
_refine_ls_wR_factor_ref         0.0455
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6080
_reflns_number_total             6448
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9sc00657e2.cif
_cod_data_source_block           alho158_a_sq
_cod_database_code               1550760
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.375
_shelx_estimated_absorpt_t_max   0.618
_shelx_res_checksum              13131
_shelx_fab_checksum              90465