A calixpyridinium-pyranine complex as a selective anion sensing assembly via the indicator displacement strategy

Atilgan S., Akkaya E.

TETRAHEDRON LETTERS, vol.45, no.50, pp.9269-9271, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 50
  • Publication Date: 2004
  • Doi Number: 10.1016/j.tetlet.2004.10.066
  • Journal Name: TETRAHEDRON LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.9269-9271
  • Keywords: indicator displacement, chemosensor, fluorescence, CHEMOSENSING ENSEMBLE, SYNTHETIC RECEPTOR, RECOGNITION, WATER
  • Middle East Technical University Affiliated: No

Abstract

The recently reported calixpyridinium tetracation is shown to be very well-suited for anion sensing via the indicator displacement strategy. A very strong binding interaction between the positively charged receptor and the fluorescent pH indicator pyranine (8-hydroxy-1,3,6-pyrenetrisulfonate) requires an anionic guest of comparable negative charge for effective indicator displacement. Thus, selective and sensitive signalling of ATP is achieved in aqueous solutions. (C) 2004 Elsevier Ltd. All rights reserved.