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The UV and IR spectra of Some Schiff bases derived from salicylaldehyde and O-methoxybenzaldehyde. Study the influence of concentration of Schiff base on tautomerism reaction process | ||
| Iraqi National Journal Of Chemistry | ||
| Article 1, Volume 0, Issue 32, 2014, Pages 677-686 | ||
| Authors | ||
| Asmaa B.N.AL-Dabagh; | ||
| Abstract | ||
| Abstract The paper includes the preparation of eight Schiff bases , derived for salicylaldehyde and o-methoxybenzaldehyde with aromatic amines such as o,m,p-amino aniline and o,m,p-phenylene diamine by standard method. The ratio of aldehyde to amine during synthesis of imines are either 1:1 or 2:1 respectively .The last ratio gives a new class of di-salicylidene anilines of limited publications is known on them till now. The presence of hydrogen bondings in imines , are identified by using UV and IR spectra. The study led to a conclusion that imines under investigation , are exist as an equilibrium mixtures of enol and keto forms in 1,2- dichloro ethane. The mechanisms of tautomerism reactions of imines are included. Finally , the influence of concentrations of Schiff bases on tautomerism process , namely on equilibrium constants values and ∆G thermodynamic parameter are given. | ||
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