期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 51, 页码 20597-20600出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja310323y
关键词
-
资金
- German Research Foundation (DFG) [SFB 658, B8]
Azobenzene fimctionalized with ortho-fluorine atoms has a lower energy of the n-orbital of the Z-isomer, resulting in a separation of the E and Z isomers' n ->pi* absorption bands. Introducing para-substituents allows for further tuning of the absorption spectra of o-fluoroazobenzenes. In particular, electron-withdrawing ester groups give rise to a 50 nm separation of the n ->pi* transitions. Green and blue light can therefore be used to induce E -> Z and Z -> E isomerizations, respectively. The o-fluoroazobenzene scaffold is readily synthesized and can be inserted into larger structures via its aryl termini. These new azobenzene derivatives can be switched in both ways with high photoconversions, and their Z-isomers display a remarkably long thermal half-life.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据