Coordination Complexes of 1,2,3-Dithiazolyl-o-naphthoquinone Ligands with Potential Conductive and Magnetic Applications

dc.contributor.advisorPreuss, Kathryn
dc.contributor.authorDinsdale, Danielle
dc.date.accessioned2019-07-22T19:23:32Z
dc.date.available2020-06-12T05:00:44Z
dc.date.copyright2019-06
dc.date.created2019-06-12
dc.date.issued2019-07-22
dc.degree.departmentDepartment of Chemistryen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeChemistryen_US
dc.description.abstractThis thesis presents coordination complexes of 1,2,3-dithiazole (DTA) molecules, 4-hydroxy-naphtho[1,2-d][1,2,3]dithiazol-5-one (o-DTANQOH) and 4-methoxy-naphtho[1,2-d][1,2,3]dithiazol-5-one (o-DTANQOMe), for the development of magnetic and conductive materials. A series of boron coordination complexes have been synthesized, [B(o-DTANQ)2][X] (X=Cl, FeCl4, OTf, GaCl4). Cyclic voltammetry of [B(o-DTANQ)2][X] (X=OTf, GaCl4) in CH3CN reveals an Ecell of 0.16 V vs. SCE with reversible +1/0 and 0/-1 redox couples. Reduction to the neutral radical state has been attempted but definitive proof has not been obtained. A new 1,2,3-DTA molecule, o-DTANQOMe, has been synthesized. Electrochemical measurements reveal a chemically reversible reduction to the radical anion state and the macromolecule cyanostar can increase the lifetime of this oxidation state, tested using cyclic voltammetry. Reactions of o-DTANQOMe with Ce(hfac)3, Cr(hfac)2, SbCl3, and SbI3 are presented and discussed. A series of complexes M(o-DTANQ)x (where M=Fe, Mn, Co and x=2, 3) and Ln(o-DTANQ)3·XH2O (where Ln=La, Gd, Ce and X=2, 3), where the ligand is in the closed-shell oxidation state have been synthesized.en_US
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada
dc.identifier.urihttp://hdl.handle.net/10214/16552
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.subjectthiazylen_US
dc.subjectdithiazolylen_US
dc.subjectconductivityen_US
dc.subjectradicalen_US
dc.subjectcoordination complexen_US
dc.subjectnaphthoquinoneen_US
dc.subjectlanthanideen_US
dc.subjectboronen_US
dc.subjecttransition metalen_US
dc.titleCoordination Complexes of 1,2,3-Dithiazolyl-o-naphthoquinone Ligands with Potential Conductive and Magnetic Applicationsen_US
dc.typeThesisen_US

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