Naked‐eye detection of Cu (II) and Fe (III) based on a Schiff Base Ruthenium complex with nicotinohydrazide. (29th June 2020)

• Record Type: Journal Article
• Authors: Xia, Xiaoli; Zhang, Daobin; Fan, Congbin; Pu, Shouzhi
• Is Part Of: Applied organometallic chemistry. Volume 34:Number 10(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-06-29
• Subjects: colorimetric response -- copper ion -- iron ion -- ruthenium; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.5841
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : A cyclometalated ruthenium (II) complex 1 [(Ru (Phen)2 (Pbznh)] + PF6 − (Phen = 1, 10‐phenanthroline and Pbznh = N‐(4‐(pyridine‐2‐yl)benzylidene) nicotinohydrazide) with nicotinohydrazide as a functional group was synthesized and characterized. Changes of its absorption spectra and color induced by Cu 2+ and Fe 3+ were systematic investigated. The results demonstrated that complex 1 could be served as a colorimetric probe to fast, selective and sensitive detection of Cu 2+ and Fe 3+ both in acetonitrile and filter paper based strips. Upon addition of Cu 2+ and Fe 3+ to solution of probe 1, solution color changed from pink to colorless and light yellow respectively, and their corresponding detection limit were calculated to be 3.26 × 10 −8 M and 3.12 × 10 −7 M. Moreover, color of test papers with 1 changed from pink to colorless/yellow when Cu 2+ /Fe 3+ were dropwise added. Therefore, it can be used as a desirable 'naked‐eye' indicator candidate for Cu 2+ and Fe 3+ . Abstract : A cycometalated ruthenium (II) complex 1 with nicotinohydrazide as a functional group was designed and synthesized; Its colorimetric detection behaviors with Cu 2+ and Fe 3+ both in solution and test papers were investigated systematically; The mechanisms of coordination with Cu 2+ and Fe 3+ have been discussed.