Solvent-dependent selective fluorescence sensor for Zn2+ and Al3+ based on a new diarylethene with a salicylal schiff base group. Issue 13 (30th March 2017)

• Record Type: Journal Article
• Authors: Ma, Lele; Liu, Gang; Pu, Shouzhi; Zheng, Chunhong; Fan, Congbin
• Is Part Of: Tetrahedron. Volume 73:Issue 13(2017)
• Page Start: 1691
• Page End: 1697
• Publication Date: 2017-03-30
• Subjects: Photochromism -- Diarylethene -- Fluorescence chemosensor -- Logic gate -- Ion recognition; Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1016/j.tet.2017.02.009
• Languages: English
• ISSNs: 0040-4020

Abstract

Abstract: A novel photochromic diarylethene with a salicylidene Schiff base group was synthesized and its multi-controllable fluorescence switching properties induced by light, base, and metal ions were investigated. The diarylethene displayed sequence-dependent responses through efficient interaction of the salicylidene Schiff base group with base and metal ions, and it could serve as a naked-eye chemosensor for highly selective detection of different metal ions in different solvents. When triggered by Zn 2+ in acetonitrile, its fluorescence was enhanced by 400 fold with a concomitant color change from dark to bright yellow. In contrast, when it bound to Al 3+ in methanol, its fluorescence was enhanced by 110-fold accompanied with a color change from dark to bright cyan. On the basis of its light-, base-, and metal-responsive fluorescence behaviors, two complicated logic gates were constructed using the fluorescence intensity as output and combinational stimuli of light and chemical species as inputs. Graphical abstract: Highlights: A novel diarylethene with a salicylidene Schiff base group was synthesized. It exhibited multi-controllable behaviors induced by light, base, and metal ions. It can serve as a naked-eye chemosensor for different metal ions in different solvent.