Highly selective and sensitive optical discrimination of pyrophosphate ion by a Zn(ll)-terpyridine complex in aqueous medium at physiological pH

Aditya Kumar Purohit, Hemanta K. Kisan, Sumanta Sahu, Pravin Kumar Kar

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A simple Zn(ll)-terpyridine complex was synthesized by the reaction of ZnCl2 with 4′-(3,4-dimethoxyphenyl)-2,2′:6′,2″-terpyridine ligand (DMTRP) in 1:1 ratio. The synthesized complex was treated as a selective fluorescent probe for pyrophosphate P2O74− (PPi) amongst other anions like F¯, Cl¯, Br¯, I¯, AcO¯, CO3, NO2¯, SO32¯, H2PO4¯, HPO4¯ etc. A 1:3 binding stoichiometry was found from the job's plot analysis. Further to study the sensing mechanism of the complex, theoretical calculations were carried out. Also from theoretical parameters the reactivity, stability and charges of the terpyridine ligand with its zinc complex was calculated.

Original languageEnglish
Article number130868
JournalJournal of Molecular Structure
Volume1243
DOIs
StatePublished - 5 Nov 2021
Externally publishedYes

Keywords

  • Chemosensor
  • DFT
  • Pyrophosphate (PPi)
  • Terpyridine

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry

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