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Spectral and kinetic studies for some new ß-diketo Schiff bases derived from 2-pivalloyl-1,3-indanedione | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 14, Issue 1, 2009, Pages 58-64 | ||
| Author | ||
| A .K.A.AL-Taie | ||
| Abstract | ||
| New ß-diketo Schiff bases have been prepared from condensations of 2-pivalloyl-1,3-indane dione with o-phenylene diamine and five substituted ortho- phenylene diamines and their structure were identified by IR, mass fragmentation and C.H.N analysis. The CT complexes of these Schiff bases (1-6) with three acceptors molecules( p-CA ,DDQ ,and TCNE ) have been studies in CH2Cl2 solution . The electronic absorption spectra of these compounds (1-6) have been estimated under different polar solvents , and also the study included the dissociation kinetics of these Schiff bases under aqueous medium and acid condition. It was found that the rate determining step hydrolysis of these ß-keto Schiff bases is first order kinetics and depended upon the nature of the substance on the amine rings . | ||
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