Bis-Silylation of Lu3N@Ih-C80: Considerable Variation in the Electronic Structures

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• 作者：Kumiko Sato ; Masahiro Kako ; Naomi Mizorogi ; Takahiro Tsuchiya ; Takeshi Akasaka ; Shigeru Nagase
• 刊名：Organic Letters
• 出版年：2012
• 出版时间：December 7, 2012
• 年：2012
• 卷：14
• 期：23
• 页码：5908-5911
• 全文大小：237K
• 年卷期：v.14,no.23(December 7, 2012)
• ISSN：1523-7052

文摘

Photochemical reactions of Lu₃N@I_h-C₈₀ with disiliranes 1 and 2 produce several isomeric adducts. Spectroscopic analyses characterize the most stable isomers as 1,4(AA) adducts, which consist of paired twist conformers at rt. The electrochemical and theoretical studies reveal that the HOMO鈥揕UMO energy gaps of the 1,4(AA) adducts are smaller than that of Lu₃N@I_h-C₈₀ because the electron-donating groups effectively raise the HOMO levels.