الفهرس 
AbstractOnly 14 pages are availabe for public view
 |  | from | 168 |  |  |
| | | from | 168 | | |
Abstract
Schiff bases, acetyl acetone, their metal chelates and naturally
Occurring anthraquinones have many applications in biochemistry, pharmaceutical, antimicrobial, antifungal and anticarcenogenic reagents. Anthraquinones (AQs) are also characterized by their interaction withDNA and their uses as colored pigments. Therefore, the preseotwork is focused on the spectroscopic -characterization and redox behavior of aseries of metal chelates and some anthraquinone derivatives employing
optically transparent thin layer electrodes. Quantum mechanical
calculations (MM and AMI techniques) were found useful for finding the optimized geometry and exploring the electronic structure of the studied anthraquinones_ The present thesis consists of three chapters:(1) In chapter one, a brief review of the principles and instrumentation of spectroelectrochemical techniques, its development, types of optically transparent thin layer electrodes, semiconductor films e.g SnO2 In2O3 and TiO2 and metal film s (Pt, Au, Hg-Pt) is presented. Themost popular mode for thin layer cyclic voltammetry and in-situ UV-visi
ble spectra involves a gold or platinun mesh (100 w/inch) optically transparent thin layer electrode. The in-situ thin layer electrochemistry at Pt or All mesh electrode takes the advantages of : i) rapid electrolysis; ii) small-volume features and iii) can be applied withaqueous and non-aqueous media for measuring the redox potentials of organic, biological and metal complex molecules of slow electrontransfer. A brief survey on the molecular modeling (semi-empirical AMI and Ab-initio) devoted to the structure and reactivity ofmolecules is included.