Diboration of Alkenes and Alkynes with a Carborane-Fused Four-Membered Boracycle Bearing an Electron-Precise B-B Bond
Zhong, Minling; Zhang, Jie; Lu, Zhenpin; Xie, Zuowei; Dalton Transactions  (2021) –; doi:10.1039/D1DT03665C

data_7708789
_publ_section_title
;
 Diboration of Alkenes and Alkynes with a Carborane-Fused Four-Membered
 Boracycle Bearing an Electron-Precise B-B Bond
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D1DT03665C
_journal_year                    2021
_chemical_formula_sum            'C12 H30 B12 Br2 S'
_chemical_formula_weight         495.96
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2021-10-28 deposited with the CCDC.	2021-11-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 114.1930(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.8716(5)
_cell_length_b                   26.4281(15)
_cell_length_c                   9.6977(5)
_cell_measurement_reflns_used    147
_cell_measurement_temperature    274(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      15
_cell_volume                     2307.8(2)
_computing_cell_refinement       'BRUKER D8VENTURE DIFFRACTOMETER'
_computing_data_collection       'BRUKER D8VENTURE DIFFRACTOMETER'
_computing_data_reduction        'BRUKER D8VENTURE DIFFRACTOMETER'
_computing_molecular_graphics    'BRUKER SHELXTL'
_computing_publication_material  'BRUKER SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      274(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'BRUKER D8VENTURE DIFFRACTOMETER'
_diffrn_measurement_method       'PHI & OMEGA SCAN'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0408
_diffrn_reflns_av_unetI/netI     0.0302
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            31876
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.248
_diffrn_reflns_theta_min         2.597
_exptl_absorpt_coefficient_mu    3.600
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.3032
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_description       block
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.400
_exptl_crystal_size_min          0.300
_refine_diff_density_max         0.313
_refine_diff_density_min         -0.519
_refine_diff_density_rms         0.061
_refine_ls_abs_structure_details
;
 Flack x determined using 1889 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.054(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         4155
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0289
_refine_ls_R_factor_gt           0.0273
_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^)+(0.0411P)^2^+1.3547P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0698
_refine_ls_wR_factor_ref         0.0708
_reflns_Friedel_coverage         0.985
_reflns_Friedel_fraction_full    0.990
_reflns_Friedel_fraction_max     0.990
_reflns_number_gt                4006
_reflns_number_total             4155
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt03665c2.cif
_cod_data_source_block           5a
_cod_original_sg_symbol_H-M      'C c'
_cod_database_code               7708789
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.266
_shelx_estimated_absorpt_t_max   0.411
_shelx_res_checksum              15575
_shelx_hkl_checksum              54632