Theoretical Study of The Structure and Tautomerism of An Asymmetric Diimine Schiff Base, Preparation and Characterization of Its Modified Electrode
GAZI UNIVERSITY JOURNAL OF SCIENCE, cilt.30, sa.4, ss.124-138, 2017 (ESCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 30 Sayı: 4
- Basım Tarihi: 2017
- Dergi Adı: GAZI UNIVERSITY JOURNAL OF SCIENCE
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
- Sayfa Sayıları: ss.124-138
- Gazi Üniversitesi Adresli: Evet
Özet
An asymmetric diimine Schiff base, 2-((4-((2-hydroxybenzylidene) amino) benzylidene) amino) phenol (2-HBP), was covered to a glassy carbon (GC) electrode surface in nonaqueous medium to fabricate a modified electrode. Cyclic voltammetry was applied for the surface modification experiments in 1 mM diimine solution. Cyclic voltammetry, contact angle measurement, electrochemical impedance spectroscopy and X-ray photoelectron spectroscopy techniques were employed to characterize the modified GC (2-HBP-GC) surface. Electrochemical impedance results showed that the modified surface blocked the electron transfer with a 98.9% surface coverage value. Additionally, theoretical study was performed to gain insight into the structural and tautomeric aspects of the asymmetric diimine Schiff base. The phenol-imine and ketoamine tautomerism forms of the asymmetric diimine Schiff base were investigated by using DFT calculations.