期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 1243, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molstruc.2021.130768
关键词
Acidochromism; Fluorescent probes; Intramolecular charge transfer (ICT); Molecular logic gate; Push-pull molecules; Phenothiazine
资金
- University of Delhi
- Council of Scientific and Industrial Research (CSIR), India
A series of novel push-pull based phenothiazine-benzothiazole derivatives were designed and synthesized with strong fluorescence properties and responsive to external stimuli. Reversible acid/base-induced chromogenic and fluorescence switching properties were observed in both solution and solid state.
A series of novel push-pull based phenothiazine-benzothiazole derivatives, in which phenothiazine and benzothiazole groups act as donors and acceptors, respectively is designed and synthesized in good yields. These compounds exhibit strong fluorescence in solution and solid state. These derivatives respond to ex-ternal stimuli such as solvents and acid. A positive solvatochromism with large Stokes shifts (113-146 nm) was observed. In solution state, blue shifted emission wavelengths of compounds containing electron-withdrawing aryl groups indicated reduced Intramolecular Charge Transfer (ICT). However, red shifts in solid state emission spectra of compounds with electron-withdrawing aryl groups indicated more pla-narity of the excited state. The naked eye detection of reversible acid/base-induced chromogenic and fluorescence switching properties were observed in both solution and the solid state upon subsequent addition of trifluoroacetic acid (TFA) and triethylamine (TEA), thereby making the synthesized derivatives efficient volatile acid-base switches. The reversible acidochromic response was further utilized for the development of inhibit (INH) molecular logic gates using TFA/ (TEA) as the chemical inputs. (c) 2021 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据