Synthesis and characterization of silver(I) complex containing 2,,2′:6′,2′′-terpyridine-1,1′′-dioxide: Thermal, photoluminescence properties and applications

Document Type : Original Article

Authors

1 Faculty of Chemistry, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran 15418, Iran

2 Department of Inorganic Chemistry, Faculty of Chemistry, K. N. Toosi University of Technology, Tehran, Iran

3 Faculty of Chemistry, University of Basel, St. Johann Ring 19, 4056 Basel,

Abstract

The reaction of silver nitrate with a substituted terpyridine ligand was investigated. The reaction of silver nitrate with 2,2':6',2''-terpyridine-1,1"-dioxide (tpyO2) in a 1:1 molar ratio resulted in the formation of the silver(I) complex [Ag(tpyO2)(H2O)]NO3•H2O (1). Moreover, the reaction of silver nitrate with 1,1"-dioxide-2,2':6',2''-terpyridine in the presence of KSCN led to the formation of complex [Ag(tpyO2)(SCN)]•2H2O (2). The products were characterized using IR, elemental analysis, multinuclear NMR spectroscopy, UV-Vis, and fluorescence spectroscopy. Thermal stability analysis of the complexes 1 and 2 revealed that the complexes [Ag(tpyO2)(H2O)]NO3•H2O and [Ag(tpyO2)(SCN)]•2H2O are stable up to 150 °C and 80 °C, respectively. The luminescent properties of the filled-shell d10 systems are of particular interest and have been the subject of various studies. The photoluminescence spectra for complexes 1 and 2 were recorded in the presence and absence of the specific metal ions. The sensing properties of 1 and 2 towards different metal ions were investigated, indicating that 1 and 2 exhibited greater sensitivity towards the Cd2+ ion than towards the other metal ions.

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Applied Chemistry Today
Volume 20, Issue 76
December 2025
Pages 81-96

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