Arylazopyrazoles: Azoheteroarene Photoswitches Offering Quantitative Isomerization and Long Thermal Half-Lives
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- 作者：Claire E. Weston ; Robert D. Richardson ; Peter R. Haycock ; Andrew J. P. White ; Matthew J. Fuchter
- 刊名：Journal of the American Chemical Society
- 出版年：2014
- 出版时间：August 27, 2014
- 年：2014
- 卷：136
- 期：34
- 页码：11878-11881
- 全文大小：284K
- ISSN：1520-5126
文摘
Arylazopyrazoles, a novel class of five-membered azo photoswitches, offer quantitative photoswitching and high thermal stability of the Z isomer (half-lives of 10 and 鈭?000 days). The conformation of the Z isomers of these compounds, and also the arylazopyrroles, is highly dependent on the substitution pattern on the heteroarene, allowing a twisted or planar geometry, which in turn has a significant impact on the electronic spectral properties of the compounds.