title: Synthesis and spectroscopic properties of new bis-tetrazoles.
abstract: Syntheses ofN,N'-phenyltetrazole podands link with aliphatic chains containing oxygen, nitrogen and sulphur atoms, are described. The complexing properties of these compounds towards metal cations (Fe2+, Cu2+, Zn2+, Co2+, Ni2+) were investigated by absorption and infrared spectroscopy. The UV-Vis titrations were performed to estimate the stability constant values of the respective complexes with Cu2+ion. Changes in UV-Vis absorption spectra and IR spectra of compound6under various concentrations of Cu2+ion in methanol suggest formation of very unstable complex. The structure of ligand2has been deduced by X-ray crystallography.
authors.affiliation: Department of Chemical Technology, Chemical Faculty, Gdansk University of Technology, 80-233 Gdańsk, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Pazik
authors.forename: Anna
authors.initials: A
authors.lastname: Skwierawska
keywords: IR; Tetrazole; UV–Vis; X-ray