A new rhodamine based colorimetric 'off-on' fluorescence sensor selective for Pd2+ along with the first bound X-ray crystal structure

Chem Commun (Camb). 2011 Aug 28;47(32):9101-3. doi: 10.1039/c1cc12845k. Epub 2011 Jul 5.

Abstract

A new fluorescence rhodamine derivative bearing an 8-aminoquinoline moiety has been designed and synthesized for selective sensing of Pd(2+) in the presence of other competing metal ions in aqueous media. Pd(2+) induced spirolactam ring opening of rhodamine is confirmed for the first time by the X-ray crystal structure of the bound Pd(2+)-complex.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aminoquinolines / chemistry
  • Cations, Divalent / analysis*
  • Crystallography, X-Ray
  • Fluorescent Dyes / chemistry*
  • Models, Molecular
  • Palladium / analysis*
  • Rhodamines / chemistry*
  • Sensitivity and Specificity
  • Spectrometry, Fluorescence / methods*

Substances

  • Aminoquinolines
  • Cations, Divalent
  • Fluorescent Dyes
  • Rhodamines
  • Palladium
  • 8-aminoquinoline