A polarographic investigation of the reduction mechanism of certain cobalt (III) complex ions

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dc.contributor.authorWhite, Richard Leeen
dc.contributor.departmentChemistryen
dc.date.accessioned2014-03-14T21:33:10Zen
dc.date.adate2010-04-07en
dc.date.available2014-03-14T21:33:10Zen
dc.date.issued1962en
dc.date.rdate2010-04-07en
dc.date.sdate2010-04-07en
dc.description.abstractA series of eight compounds with bis-diamine cores were prepared and their electrochemical behavior was explored polarographically. The behavior of the compounds was studied at the dropping mercury electrode and the rotating platinum electrode. Trans-dinitro-bis-(ethylenediamine) cobalt (III) nitrate shows reversible behavior in well-buffered solutions at the dropping mercury electrode, The mechanism for the reduction is proposed as; rapid, reversible election transfer; decomposition of the reduced species; and, in solutions sufficiently alkaline, the formation of tris-(ethylenediamine) cobalt (II), thereby accounting for the observed second wave. The reduction of cis dithiocyanato-bis-(ethylenediamine) cobalt (III) thiocyanate and oxalato-bis-(ethylenediamine) cobalt (III) chloride both give irreversible waves, thereby complicating any proposal of a mechanism. The observed second reduction wave, though, appears to be caused by the formation of tris-(ethylenediamine) cobalt (II), as in the case of the dinitro compound. A proposal of the mechanism for the other five compounds was not possible as they either reduced at too positive a potential, aquated too rapidly, or both.en
dc.description.degreeMaster of Scienceen
dc.format.extentvi, 85 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-04072010-020112en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04072010-020112/en
dc.identifier.urihttp://hdl.handle.net/10919/41963en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1962.W495.pdfen
dc.relation.isformatofOCLC# 22484149en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1962.W495en
dc.subject.lcshCobalten
dc.subject.lcshPolarographyen
dc.titleA polarographic investigation of the reduction mechanism of certain cobalt (III) complex ionsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineChemistryen
thesis.degree.grantorVirginia Polytechnic Instituteen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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