Synthesis, spectral and thermal characterization, biological activity of a new amino acide ester containing substituted salicylaldimine Schiff base ligand and its Ru(II)bipyridyl complex

Article type: Research Article

Authors: Yörür-Göreci, Çiğdem | Altaş-Puntar, Nilay | Toraman, Abdullah | Demirhan, Nebahat^{; *}

Affiliations: Department of Chemistry, Yildiz Technical University, Esenler, Istanbul, Turkey

Correspondence: [*] Corresponding author: Nebahat Demirhan, Yildiz Technical University, Faculty of Arts and Sciences, Chemistry Department, 34210 Istanbul, Turkey. E-mail: [email protected].

Abstract: The new salicylaldimine, as O,N-bidentate ligand (HL), containing amino acide ester and its Ru(II) complex [Ru(bpy)2(HL)]Cl2 have been prepared. Synthesized compounds have been structurally characterized by IR, 1H NMR, LC-MS, fluorescence spectroscopy, elemental and thermal (TGA-DSC) analyses. The metal to the ligand ratio of the Ru(II) complex was found to be 1:1. Antifungal activities of the ligand and complex have been investigated. The Ru(II) complex have strong antifungal activity than the ligand against Aspergillus niger.

Keywords: Amino acid ester, antifungal agent, fluorescence spectroscopy, ruthenium complex

DOI: 10.3233/MGC-210032

Journal: Main Group Chemistry, vol. 20, no. 2, pp. 193-202, 2021