Activation of H<sub>2</sub> and Et<sub>3</sub>SiH by the Borinium Cation [Mes<sub>2</sub>B]<sup>+</sup>: Avenues to Cations [MesB(μ-H)<sub>2</sub>(μ-Mes)BMes]<sup>+</sup> and [H<sub>2</sub>B(μ-H)(μ-Mes)B(μ-Mes)(μ-H)BH<sub>2</sub>]<sup>+</sup>
- Karlee L. Bamford (6560708)
- Zheng-Wang Qu (1761268)
- Douglas W. Stephan (1264062)
DOIAbstract
Reaction of dihydrogen and the borinium cation salt [Mes2B][B(C6F5)4] gave an arene-stabilized mesityl-borenium cation, which isotopically scrambles HD. Similarly, reaction with triethylsilane gave the diboranium cation [MesB(μ-H)2(μ-Mes)BMes]+ featuring three bridge-bonds between two boron centers. Reaction of same (Mes2BH)2 with Brønsted acid also afforded the same diboranium whereas the corresponding reaction with (MesBH2)2 yielded the triboron cation [H2B(μ-H)(μ-Mes)B(μ-Mes)(μ-H)BH2]+
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