Quinoxaline - Imidazolium receptors for unique sensing of pyrophosphate and acetate by charge transfer

N. Jiten Singh, Eun Jin Jun, Kavitha Chellappan, Daniel Thangadurai, R. Prakash Chandran, In Chul Hwang, Juyoung Yoon, Kwang S. Kim

Research output: Contribution to journalArticlepeer-review

106 Scopus citations

Abstract

Quinoxaline derivatives (1-4) bearing two imidazolium moieties are found to strongly bind anions and show unique charge-transfer fluorescent responses to pyrophosphate and acetate, whereas they show excimer formation with other anions. Anion-binding studies are investigated with fluorescence and 1H NMR analysis, single-crystal X-ray analysis, and theoretical calculations.

Original languageEnglish
Pages (from-to)485-488
Number of pages4
JournalOrganic Letters
Volume9
Issue number3
DOIs
StatePublished - 1 Feb 2007

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