title: Chemical control of photochromism and a multiresponsive molecular switch based on a diarylethene derivative containing naphthol.
abstract: A photochemically inactive diarylethene derivative with a naphthol group bridging through the imidazole unit (DIN) was synthesized to characterize a multifunctional switch. Upon stimulation by radiation (UV and visible light), the target diarylethene derivative DIN was not photochemically inactive but photo-active, it could be photo-converted into a keto compound. Moreover, the photochromic reaction of DIN was observed when it was stimulated by the addition of acid or methylation. Fluorescence quenching and the bathochromic effect occurred when DIN was stimulated by the addition of copper ions and a base, respectively. Its optical properties could be regulated by various chemical stimuli. Thus, it can potentially be utilized as a multiresponsive molecular switch.
authors.affiliation: Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China. chshliu@mail.ccnu.edu.cn.
authors.forename: Wenju
authors.initials: W
authors.lastname: Liu
authors.forename: Ziyong
authors.initials: Z
authors.lastname: Li
authors.forename: Fang
authors.initials: F
authors.lastname: Hu
authors.forename: Jun
authors.initials: J
authors.lastname: Yin
authors.forename: Guang-Ao
authors.initials: GA
authors.lastname: Yu
authors.forename: Sheng Hua
authors.initials: SH
authors.lastname: Liu
mesh_terms: D000097:Acetonitriles / Q000737:chemistry; D003300:Copper / Q000737:chemistry; D006851:Hydrochloric Acid / Q000737:chemistry; D007477:Ions / Q000737:chemistry; D008027:Light; D008745:Methylation; D009284:Naphthols / Q000737:chemistry*; D055668:Photochemical Processes; D012972:Sodium Hydroxide / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D014466:Ultraviolet Rays
chemical_list: D000097:Acetonitriles; D007477:Ions; D009284:Naphthols; D012972:Sodium Hydroxide; D003300:Copper; D006851:Hydrochloric Acid; C032159:acetonitrile