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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/16840
Title: Mechanistic Studies of the Hydrolysis of Pyrophosphate Promoted by Tetraaminecobalt (III) Ions
???metadata.dc.contributor.*???: Dr. Fikru Tafesse
Abebe, Zewdu
Issue Date: Jun-1990
Publisher: Addis Ababa University
Abstract: The hydrolysis of pyrophosphate was investigated at different concentrations (2X10-3 M, 4X10-3 M and 10-2M) of [N4CO(OH)(OH ))2+[N4 = en2 and+ tn2 (en = ethylenddiamine, tn = trimathylenediamine)] using Eu /H and OH quenching techniques. The reaction was inonitored by measurement of orthophosphate (pi) in quenched aliquots of the reaction mixtures using Malachite Green phosphornolybdate complex as the analytical reagent. The reactive species with regardI to hydrolysis was found to be a 3:1 N4C0IIIppi complex. The results show a relatively larger amounts of degradation products for the directly added systems than for those mixed by step wise addition. Factors affecting the formation and degradation of the reactive species are discussed and plausible mechanisms are forwarded.
Description: A Thesis Presented to the School of Graduate Studies Addis Ababa University in Partial Fulfilment of the Requirements for the Degree of Master of Science in Chemistry
URI: http://hdl.handle.net/123456789/16840
Appears in Collections:Thesis - Chemistry

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