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dc.contributor.supervisor Boeré, René T.
dc.contributor.author Okeh, Saturday Amedu
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2014-11-20T19:51:42Z
dc.date.available 2014-11-20T19:51:42Z
dc.date.issued 2014
dc.identifier.uri https://hdl.handle.net/10133/3605
dc.description xxi, 147 leaves ; 29 cm en_US
dc.description.abstract This thesis describes the synthesis and characterization of some 2,1,3-benzothiadiazole derivatives, specifically 2,1,3-benzothiadiazole-4,7-dicarbonitrile (DCBTD) and diethyl 2,1,3-benzothiadiazole-4,7-dicarboxylate (DEBTD). The crystal structures have been determined; also both compounds exhibit two sequential one-electron reductions in square-wave and cyclic voltammetry. Stable radical anions are detected by EPR spectroscopy. In the solid-state, DEBTD displays endo/endo, exo/exo and endo/exo conformational isomerism. Silver(I) complexes of DCBTD and DEBTD have been prepared with a number of anions (BF4, ClO4−, PF6−, and SbF6−) and their crystal structures are determined. All these complexes exist as coordination polymers, some of which are dry and others are solvates (benzene, water). DCBTD is found to coordinate through one or more nitrile and one or more ring N atoms. DEBTD exclusively forms bis chelate complexes using ring N and ester carbonyl O donors. Evidence from electrochemistry and ESI mass spectrometry indicates that these polymers break down on dissolving in CH3CN. Conversion of DEBTD into 2,1,3-benzothiadiazole-4,7-dicarboxylic acid, 2,3-diaminobenzene-1,4-dicarboxylic acid and salts thereof has been substantiated by crystal structure determinations. en_US
dc.language.iso en_CA en_US
dc.publisher Lethbridge, Alta. : University of Lethbridge, Dept. of Chemistry and Biochemistry, 2014 en_US
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en_US
dc.subject 2,1,3-benzothiadiazole derivatives en_US
dc.subject Metal organic frameworks (MOFs) en_US
dc.subject Heterocyclic compounds en_US
dc.subject Chelation chemistry en_US
dc.subject Organic synthesis en_US
dc.subject Chalcogens en_US
dc.subject Dissertations, Academic en_US
dc.title Synthesis and characterization of benzo-2,1,3-thiadiazole derivatives and their metal complexes en_US
dc.type Thesis en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Chemistry and Biochemistry en_US
dc.degree.level Masters en_US
dc.degree.level Masters
dc.proquest.subject 0490 en_US
dc.proquestyes Yes en_US


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