Solution Phase Isomerization of Vibrationally Excited Singlet Nitrenes to Vibrationally Excited 1,2-Didehydroazepine
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- 作者：Gotard T. Burdzinski ; Chris T. Middleton ; Terry L. Gustafson ; Matthew S. Platz
- 刊名：Journal of the American Chemical Society
- 出版年：2006
- 出版时间：November 22, 2006
- 年：2006
- 卷：128
- 期：46
- 页码：14804 - 14805
- 全文大小：54K
- 年卷期：v.128,no.46(November 22, 2006)
- ISSN：1520-5126
文摘
Photolysis of phenyl and o-biphenylyl azide (at 270 nm) releases vibrationally excited singlet nitrene which isomerizes to the corresponding hot 1,2-didehydroazepine at a rate competitive with thermal relaxation. Using ultrafast vibrational spectroscopy we observe the formation of vibrationally excited 1,2-4,6-azacycloheptatetraene (1,2-didehydroazepine) in picoseconds following photolysis of phenyl azide in chloroform and o-biphenylyl azide in acetonitrile at ambient temperature.