title: Multi-responsive photochromism of a new diarylethene with a salicylaldehyde group.
abstract: A new photochromic diarylethene with a salicylaldehyde group was synthesized and fully characterized. With the stimulation of acid/base and light, the diarylethene showed multi-responsive photochromism. The deprotonated derivative of the diarylethene with salicylaldehyde group, due to the addition of triethylamine into its solution, also showed excellent photochromism with distinguishable color change. And the deprotonated example could recover its original state with trifluoroacetic acid. Furthermore, the processes of photochromism and acidichromism could be effectively modulated with light and chemicals. Cyclic voltammetry tests suggested that triethylamine could significantly decrease band-gaps of both open-ring and closed-ring isomers of the diarylethene.
authors.affiliation: Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China.
authors.forename: Shiqiang
authors.initials: S
authors.lastname: Cui
authors.affiliation: Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China. Electronic address: pushouzhi@tsinghua.org.cn.
authors.forename: Shouzhi
authors.initials: S
authors.lastname: Pu
authors.affiliation: Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
mesh_terms: D065966:Absorption, Physicochemical; D000097:Acetonitriles / Q000737:chemistry; D000447:Aldehydes / Q000737:chemistry*; D000475:Alkenes / Q000138:chemical synthesis / Q000737:chemistry*; D003116:Color; D055664:Electrochemical Techniques; D005030:Ethylenes / Q000737:chemistry*; D008027:Light; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000097:Acetonitriles; D000447:Aldehydes; D000475:Alkenes; D005030:Ethylenes; C013243:salicylaldehyde; C032159:acetonitrile
keywords: Diarylethene; Fluorescence switch; Light and chemical stimuli; Multi-responsive property; Photochromism