A highly selective fluorescent chemosensor for lead ions

Chao-Tsen Chen; Wan-Pei Huang

doi:10.1021/ja025710e

A highly selective fluorescent chemosensor for lead ions

J Am Chem Soc. 2002 Jun 5;124(22):6246-7. doi: 10.1021/ja025710e.

Authors

Chao-Tsen Chen¹, Wan-Pei Huang

Affiliation

¹ Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, ROC. ctchen@mail.ch.ntu.edu.tw

PMID: 12033846
DOI: 10.1021/ja025710e

Abstract

A simple fluorescent chemosensor 1 exhibits a 40-fold fluorescence enhancement upon addition of lead ion and yet is insensitive to most of univalent and divalent metal ions. The high affinity of 1 toward Pb2+ presumably results from the cooperative binding behaviors of two potential metal binding sites: the dicarbonyl and the 15-monoazacrown-5 ether.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Cations, Divalent / chemistry
Coumarins / chemical synthesis
Coumarins / chemistry*
Fluorescence
Fluorescent Dyes / chemical synthesis
Fluorescent Dyes / chemistry*
Lead / analysis
Lead / chemistry*
Spectrometry, Fluorescence / methods
Substrate Specificity

Substances

Cations, Divalent
Coumarins
Fluorescent Dyes
Lead