Mercaptomethylphenyl-modified tetraphenylethene as a multifunctional luminophor: stimuli-responsive luminescence color switching and AIE-active chemdosimeter for sulfur mustard simulants. Issue 44 (31st October 2017)

• Record Type: Journal Article
• Authors: Wang, Hui; Wang, Dong-En; Guan, Jianping; Han, Xiang; Xue, Pengchong; Liu, Wenming; Yuan, Mao-Sen; Wang, Jinyi
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 44(2017)
• Page Start: 11565
• Page End: 11572
• Publication Date: 2017-10-31
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7tc03524a
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A tetraphenylethene-based multifunctional luminophor as solid-state luminescence material and chemdosimeter for sulfur mustard was successfully constructed. Abstract : As a commonly known chemical warfare agent, sulfur mustard (SM ) is a severe vesicant that can induce grievous blisters on the skin and mucous membranes. Because the onset ofSM toxicity is fast, a rapid, sensitive, and accurate method for the detection ofSM is necessary. However, designing an effective detection method forSM is challenging becauseSM does not have any traditional molecular recognition sites. In this study, a fluorescence probe for the detection ofSM and anSM simulant (2-chloroethyl ethyl sulfide, CEES ) was developed based on the reaction of benzenemethanethiol with the analytes. A non-emissive mercaptomethylphenyl-modified tetraphenylethene (TPE) probe was designed and synthesized. This probe can emit strong fluorescence upon reacting withCEES for 5 minutes in an aqueous solution in the presence of metal ions due to the formation of a sandwich-type complex, which can effectively restrict the rotation of the phenyl rings of TPE. Furthermore, this procedure exhibited high sensitivity for analytes and can be applied to the detection ofCEES in soil. As a TPE derivative, this probe also exhibited a reversible solid-state luminescence color switching between blue emission (467 nm) in the crystal state and green emission (516 nm) in the amorphous state upon fuming, grinding and heating. These results indicate thatS4 has potential as a multifunctional material of a "smart" luminophor and an AIE-active fluorescent probe forSM .