Naslov
Cyclic and differential pulse voltammetric behaviour of Schiff base complex with copper

Autori
Šter, Anamarija ; Kuliš, Irena ; Sesar, Vedrana ; Karnaš, Maja ; Medvidović-Kosanović, Martina

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of XXIV. Croatian meeting of Chemists and Chemical engineers / Ukić, Š. ; Bolanča, T. - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2015, 110-110

ISBN
978-953-6894-54-3

Skup
XXIV. Croatian meeting of Chemists and Chemical engineers

Mjesto i datum
Zagreb, Hrvatska, 21.04.2015. - 24.04.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Schiff base ; complex ; electrochemistry ; oxidation ; reduction ; voltammetry

Sažetak
Oxido-reduction properties of a Schiff base complex with copper were investigated by cyclic voltammetry and differential pulse voltammetry. Measurements were conducted in a three electrode voltammetric cell in a non-aqueous media. Glassy carbon was used as a working electrode, platinum wire as counter electrode and non-aqueous Ag/Ag+ electrode as a reference electrode. Inert atmosphere was acomplished by system purging with high purity argon Ar 5 (Ar = 99, 999 %), before each measurement. Cyclyc voltammograms revealed one oxidation and one reduction peak of the investigated Schiff base complex with copper (Ep, a = 0, 042 V and Ep, k = -0, 350 V), which both increased with increasing concentration (c = 1, 0 •10-4 mol dm- 3... 2, 7 •10-4 mol dm-3) and scan rate (ν = 25...300 mV/s). The results have shown that the oxidation process controlled by diffusion. [1]. High Ep value (392 mV) suggests that, during electron transfer, considerable stereochemical reorganization of the coordination sphere occurs [2]. Differential pulse voltammetry showed one oxidation peak Ep, a = -0, 075 V, which also increased with increasing concentration of the Schiff base complex with copper.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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