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Self-assembled molecular rods and squares with chalcogenadiazole framework ligands

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dc.contributor.advisor Boere, Rene T
dc.contributor.author Hassan, Mohammad Rokib
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2012-04-24T22:16:59Z
dc.date.available 2012-04-24T22:16:59Z
dc.date.issued 2010
dc.identifier.uri http://hdl.handle.net/10133/2639
dc.description xvii, 152 leaves : ill. (some col.) ; 29 cm en_US
dc.description.abstract During the attempts to carry out Suzuki coupling reactions, the σ-bonded Pd−Caryl benzochalcogenadiazolyl complexes trans-[ClPd(PPh3)2(C6H2BrN2E)] (E = S, Se) were isolated. The corresponding bromo derivatives were also synthesized on purpose to investigate their activity in Stille coupling reactions. A head-to-tail dimer trans- [{ClPd(PPh3)(μ-C6H2BrN2Se)}2] was synthesized from the thermolysis of trans- [ClPd(PPh3)2(C6H2BrN2Se)] in the presence of SeO2. The reduction potentials of the mononuclear and dinuclear complexes were measured by cyclic voltammetry (CV) and square wave voltammetry (SWV). 4,7-bis(2/4-pyridyl)benzochalcogenadiazole ligands were synthesized by Stille coupling reactions and the 1,5-bis(4-pyridyl)naphthalene ligand was prepared by a Suzuki coupling reaction. Reactions of the labile complex [BrRe(CO)4(NCMe)] with 4,7-bis(4- pyridyl)benzochalcogenadiazole ligands in a 2:1 ratio afforded self-assembled molecular rods [{ReBr(CO)4}2(μ-4,7-bis(4-pyridyl)benzochalcogenadiazoles)]. Palladium directed molecular squares [(enPd)(μ-4,7-bis(4-pyridyl)benzochalcogenadiazole)]4[PF6]8 were prepared by reactions of enPd(PF6)2 and 4,7-bis(4-pyridyl)benzochalco-genadiazoles in a 1:1 ratio. The optoelectronic properties of the ligands and the molecular rods were investigated by CV and SWV, and by luminescence spectroscopy. The optical properties of the square complexes were also studied by luminescence spectroscopy. en_US
dc.language.iso en_US en_US
dc.publisher Lethbridge, Alta. : University of Lethbridge, Dept. of Chemistry and Biochemistry, c2010 en_US
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en_US
dc.subject Heterocyclic chemistry en_US
dc.subject Chemistry, Organic en_US
dc.subject Nanostructured materials -- Synthesis en_US
dc.subject Self-assembly (Chemistry) en_US
dc.subject Ligands en_US
dc.subject Palladium compounds en_US
dc.subject Selenium compounds en_US
dc.subject Rhenium compounds en_US
dc.subject Organic compounds -- Synthesis en_US
dc.subject Dissertations, Academic en_US
dc.title Self-assembled molecular rods and squares with chalcogenadiazole framework ligands 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

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