Research Institute for Electronic Science, Hokkaido University, N20, W10, Sapporo 001-0020, Japan.
Chem Commun (Camb). 2012 Nov 14;48(88):10874-6. doi: 10.1039/c2cc35889a. Epub 2012 Oct 1.
Reversible fluorescence photoswitching of RSA-AZO dyad 1 was clearly demonstrated in an acidic aqueous solution. The fluorescence photoswitching mechanism is based on the reversible ring opening/closing reactions of the RSA unit induced by a photochromic pK(a) change along with the photoisomerization of the AZO unit.
RSA-AZO 偶联物 1 的可逆荧光光致开关现象在酸性水溶液中得到了清晰的证实。荧光光致开关的机制基于 RSA 单元的光致变色 pKa 变化引起的可逆开/闭环反应以及 AZO 单元的光致异构化。
