A cholesteryl thiazolothiazole derivative for colorimetric sensing of Cu2+ and its sol-gel transition

Xin Zhang, Hyun A. Choi, Songyi Lee, Jun Yin, Sun Hee Kim, Chongmok Lee, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Abstract In the current work, a new thiazolothiazole derivative Chol-TZTZ (1) was synthesized, in which a thiazolothiazole bearing aryl amine groups was linked with four cholesteryl units. Thiazolothiazole derivative 1 displayed a unique colorimetric change from green to blue upon the addition of Cu2+via the formation of organic radicals. UV absorption maximum was changed from 395 nm to 700 nm when Cu2+ was added. Among the various solvents, cyclohexanone could induce gelation of compound 1. π-π interaction between the thiazolothiazole core and van der Waals forces between the cholesteryl group should be involved in the molecules self-assembly of the gelator chol-TZTZ into fibrous superstructures.

Original languageEnglish
Article number4818
Pages (from-to)109-115
Number of pages7
JournalDyes and Pigments
Volume122
DOIs
StatePublished - 3 Jul 2015

Keywords

  • Colorimetric sensor
  • Copper sensing
  • Cu(II) sensor
  • Organo radical
  • Sol-gel transition
  • Thiazolothiazole

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