ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Zinc complexes based terpyridine ligands including aromatic moieties: synthesis and study of sensing properties

Sadullah Khadimzada, Mohammad Hashim Abedi, Jenaiduhllah Batur, Abdul Qayom Rajabi, and Mahmud Jan Mahali

Chemistry Department, Sar-E-Pul Higher Education Institute, Sar-E-Pul, Afghanistan

E-mail: Jbatur99@outlook.com

Received: 15 November 2024  Accepted: 18 February 2025

Abstract:

In this project, terpyridine compound including aromatic moiety (L^TPY−1naph) was synthesized and characterized. In order to study the sensing properties, “Zinc(II) complexes” [ZnBr₂ (L^TPY−1naph)] was synthesized and characterized. To investigate the sensing properties of the complex toward sulfur aromatic pollutants, 2.8 × 10^–5 M solution of the complexes in the presence of 1 to 10 ppm of the pollutants was studied. The sensing response of the complex toward benzene toluene and phenyl-methyl sulfoxide is positive, whereas the sensing response of the complex toward phenyl-methyl sulfide, thiathrene, thiophene, and thiophenol. The reason for the positive response of the complex to some of these pollutants is a lone pair π…π between a lone pair of sulfur and an aromatic moiety of the terpyridine ligand.

Graphical abstract

Keywords: Crystal engineering; UV–Vis sensor; Tripyridine ligands; Terpyridine zinc bromide complexes

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-025-03974-0

Chemical Papers 79 (5) 2883–2894 (2025)