الفهرس 
Charge transfer complexesOnly 14 pages are availabe for public view
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Abstract
This thesis comprises three chapters. The first one includes the introduction which deals with the spectral characteristics of Schiff bases. The chemistry of charge transfer complexes regarding their nature, different types of donors and acceptors as well as their spectral properties is considered. A literature survey on charge transfer complexes of nitro compounds and metal chelates of Schiff bases is covered. This chapter also includes the aim of investigation and problem orientation. The second chapter is devoted to the experimental which includes the description of the preparation of heterocyclic Schiff bases, their charge transfer complexes with different acceptors as well as their metal chelates with Cu(II), Ni(I1) and Zn(I1) ions. The different spectroscopic techniques and the physical measurements used are described.The third chapter contains the results and discussion which includes the following parts: The f~stp art comprises a detailed study of the different spectral characteristics of Schiff bases derived from the heterocyclic amines: 5-aminoindole, 3-aminopyrazole, 2-aminobenzothiazole, 2-amino-3-hydroxypyridine and 4- aminoantipyrine. The infrared, electronic and ’~nrnr spectra confumed the assigned structures of these Schiff bases. The tautomeric equilibrium between enolamine and keto-amine forms in Schiff bases derived from salicylaldehyde and 2- hydroxy-1-naphthaldehyde is indicated from their electronic and ’~nmsrp ectra. Moreover, in this part the electronic absorption spectra of the different heterocyclic Schiff bases derived from salicylaldehyde are studied in different solvents.