並列摘要
Boron mono- and di-cations featuring nucleophilic N-heterocyclic olefin (NHO) and pentamethylcyclopentadienyl (Cp*) substituent have been prepared and structurally characterized. Experimental and theoretical investigations show that [η5-Cp*B-NHO]2+ is considerably more Lewis acidic than [η5-Cp*B-IMes]2+ due to the steric congestion between NHO and Cp* leading much expose around the central boron atom. However, the weak interaction between NHO ligand and boron center result in the reaction product are generally unstable to isolate and characterize.
參考文獻
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延伸閱讀
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