Hydrosilylation of BB triple bonds: catalyst- and reductant-free construction of B-Si bonds and B<sub>2</sub>Si heterocycles.
Brückner, Tobias; Duwe, Dario; Fantuzzi, Felipe; Heß, Merlin; Dewhurst, Rian D.; Radacki, Krzysztof; Braunschweig, Holger; Chemical communications (Cambridge, England) 60 (2024) 3259–3262; doi:10.1039/d4cc00141a

data_7132637
_publ_section_title
;
 Hydrosilylation of B&#xe002;B triple bonds: catalyst- and reductant-free
 construction of B-Si bonds and B<sub>2</sub>Si heterocycles.
;
_journal_issue                   24
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              3259
_journal_page_last               3262
_journal_paper_doi               10.1039/d4cc00141a
_journal_volume                  60
_journal_year                    2024
_chemical_formula_moiety         'C52 H68 B2 N4 Si'
_chemical_formula_sum            'C52 H68 B2 N4 Si'
_chemical_formula_weight         798.81
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_atom_sites_solution_hydrogens   mixed
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_audit_creation_method           'CIF-fill 1.2y (K.Radacki, 2005-21)'
_audit_update_record
;
2023-10-13 deposited with the CCDC.	2024-01-16 downloaded from the CCDC.
;
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_diffrn_ambient_environment      N~2~
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_diffrn_measurement_device       'four-circle diffractometer'
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_diffrn_radiation_monochromator  'multi-layer mirror'
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_diffrn_reflns_point_group_measured_fraction_full 0.999
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_diffrn_source                   'micro-focus sealed X-ray tube'
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_exptl_crystal_colour            yellow
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_exptl_crystal_description       block
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_exptl_crystal_size_min          0.154
_refine_diff_density_max         0.228
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_refine_ls_extinction_method     none
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_refine_ls_number_reflns         9208
_refine_ls_number_restraints     336
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0891
_refine_ls_R_factor_gt           0.0533
_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^)+(0.0337P)^2^+3.0886P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1042
_refine_ls_wR_factor_ref         0.1234
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6440
_reflns_number_total             9208
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4cc00141a2.cif
_cod_data_source_block           ToBr080_a
_cod_depositor_comments
'Adding full bibliography for 7132636--7132639.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7132637
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.975
_shelx_estimated_absorpt_t_max   0.986
_shelx_res_checksum              42228
_shelx_hkl_checksum              53201