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dc.contributor.advisorMackinnon, Craig
dc.contributor.authorAgyei, Clifford
dc.date.accessioned2019-06-13T18:27:26Z
dc.date.available2019-06-13T18:27:26Z
dc.date.created2018
dc.date.issued2018
dc.identifier.urihttp://knowledgecommons.lakeheadu.ca:7070/handle/2453/4342
dc.description.abstractOligomers of thiophene are ubiquitous in molecular materials research. Other ring systems, especially those lacking at least C2v symmetry are much less common. We investigated thiophene-thiazole, pyrrole-thiazole, thiophene-furan, and thiophene-selenophene co-oligomers, which nominally have the same conjugation length and physical dimensions as thiophene oligomers but contain a heteroatom, that should impact the electronic properties. The lower symmetry of the 1,3-thiazole system, among other attributes, makes these new systems chemically challenging to synthesize; however, the electronic and steric variability makes them interesting targets. One common method of synthesizing thiazole is the ring-closing reaction that generates an amino-substituted thiazole. We have done a systematic study to convert the aminothiazole to a more useful synthon using Sandmeyer conditions. We herein present the synthesis, characterization, and molecular or photoelectronic structures of selected mixed oligomer systems, along with a computational study to measure bond length alternation, localization indices, and HOMO-LUMO (band gap) energy. Aminothiazole can be deaminated using Sandmeyer conditions. As conjugation length increases with the addition of a more electron withdrawing group, there is a general decrease of the band gap as well as of the HOMO- LUMO energies.en_US
dc.language.isoen_USen_US
dc.subjectSemiconductivityen_US
dc.subjectHetero(aromatic) compoundsen_US
dc.subjectSandmeyer reactions with heterocyclesen_US
dc.titleOrganic semiconductors containing multi-heteroatom ringsen_US
dc.typeThesisen_US
etd.degree.nameMaster of Scienceen_US
etd.degree.levelMasteren_US
etd.degree.disciplineChemistryen_US
etd.degree.grantorLakehead Universityen_US
dc.contributor.committeememberMawhinney, Robert
dc.contributor.committeememberKinrade, Stephen
dc.contributor.committeememberYlijoki, Kai


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