Optical sensing of aqueous nitrate anion by a platinum(II) triimine salt based solid state material

Amie E Norton; Mahmood Karimi Abdolmaleki; Logan Andriot; Christina Cashen; Jeanette A Krause; William B Connick; Sayandev Chatterjee

doi:10.1039/d2cc04732b

Optical sensing of aqueous nitrate anion by a platinum(II) triimine salt based solid state material

Chem Commun (Camb). 2022 Nov 1;58(87):12160-12163. doi: 10.1039/d2cc04732b.

Authors

Amie E Norton¹, Mahmood Karimi Abdolmaleki¹, Logan Andriot¹, Christina Cashen¹, Jeanette A Krause¹, William B Connick¹, Sayandev Chatterjee²

Affiliations

¹ Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA. amien@ksu.edu.
² TerraPower LLC, Bellevue, WA, 98008, USA. schatterjee@terrapower.com.

PMID: 36200395
DOI: 10.1039/d2cc04732b

Abstract

Selective and quantitative measurement of aqueous nitrate (NO₃^-) anion is achieved using solid [Pt(Cl-4-tpy)Cl]ClO₄ salt (Cl-4-tpy = 4-chloro-2,2':6'2''-terpyridine), and as the salt supported on controlled porous glass. This detection method relies on the color change of the Pt(II) complex from yellow to red and intense luminescence response upon ClO₄^- exchange with NO₃^- due to concomitant enhancement of Pt⋯Pt interactions. The spectroscopic response is highly selective for NO₃^- over a large range of halides and oxoanions.