Research Information System
Thesis Type: Postgraduate
Institution Of The Thesis: Gazi University, Fen Bilimleri Enstitüsü, KİMYA ANA BİLİM DALI, Turkey
Approval Date: 2022
Thesis Language: Turkish
Student: Zeynep Gizem TAŞ
Supervisor: Ebru Aktan
Open Archive Collection: AVESIS Open Access Collection
Abstract:
Hydrazone derivatives are chromophore groups with good photophysical properties and used in chemosensors structures. The nitrogen, hydrogen atoms and carbon-nitrogen double bond in the hydrazone skeleton enable hydrazones to make electrophilic, nucleophilic and hydrogen bond interactions. Thanks to these capabilities, chemosensors containing hydrazone chromophores interact with target analytes, causing changes in absorption and/or fluorescent optical signals. These changes improve the properties of chemosensors and can be measured spectrophotometrically or detected with the naked eye. Within the scope of the thesis, a new series of dyes with hydrazone chromophore was synthesized. Characterizations of the synthesized dyestuffs were elucidated using FT-IR, 1H-NMR, 13C-NMR and HR-MS spectroscopic methods. The chemosensor properties of dyes against anions were determined using UV-Vis absorption and fluorescence spectrophotometry methods. Chemosensor-anion interaction mechanisms were explained using theoretical methods.
Key Words : Chromophore, density functional theory (DFT), computational
chemistry, hydrazone, anion