Quantitative fluorescent detection of pyrophosphate with quinoline-ligated dinuclear zinc complexes

Inorg Chem. 2013 Sep 16;52(18):10223-5. doi: 10.1021/ic401605m. Epub 2013 Aug 28.

Abstract

Dinuclear zinc complex [Zn2(TQHPN)(AcO)](2+) exhibits characteristic fluorescence response (λex = 317 nm and λem = 455 nm) toward pyrophosphate (PPi) with maximum fluorescence upon 1:1 Zn2(TQHPN)-PPi complex formation. The crystallographic investigation utilizing P(1)P(2)-Ph2PPi revealed that the fluorescent response mechanism is due to intramolecular excimer formation of two quinoline rings.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Diphosphates / analysis*
  • Fluorescence*
  • Models, Molecular
  • Molecular Structure
  • Organometallic Compounds / chemical synthesis
  • Organometallic Compounds / chemistry*
  • Quinolines / chemistry*
  • Spectrometry, Fluorescence
  • Zinc / chemistry*

Substances

  • Diphosphates
  • Organometallic Compounds
  • Quinolines
  • diphosphoric acid
  • quinoline
  • Zinc