Structures and thermal stability of selected organic inclusion compounds

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dc.contributor.authorJanjic, Nikolinaen_ZA
dc.date.accessioned2015-11-13T13:07:00Z
dc.date.available2015-11-13T13:07:00Z
dc.date.issued2002en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThe crystal structures of 1,1 ,6,6-Tetraphenyl-hexa-2,4-diyne-1 ,6-diol and 5-(3,5- Dicarboxyphenylethynyl)-isophthalic acid hosts with various guests have been elucidated. Depending on their structural properties and the way in which the host components pack, the guests may become trapped in spaces or voids, stacked in channels or sandwiched between layers of hosts. The crystal structures are stabilised by hydrogen bonding networks created by host-guest intermolecular interactions. The host hydroxy moieties adopt a trans conformation in 1,1 ,6,6-Tetraphenyl-hexa-2,4-diyne-1 ,6- diol host-guest inclusion componds. Host-guest hydrogen bonding in 5-(3,5- Dicarboxyphenylethynyl)-isophthalic acid salts occurs via the carboxylate group of the host anion. Hydrogen bond formation was the directing force determining the form of a host-guest array. The crystal structures of four inclusion compounds with 1,1 ,6,6-Tetraphenyl-hexa-2,4- diyne-1 ,6-diol host and six hydrated salt structures with 5-(3,5-Dicarboxyphenylethynyl)isophthalic acid host were solved using the single crystal X-ray diffraction technique. In addition the thermal stability and the structural properties of all compounds were investigated by thermal analysis techniques, including differential scanning calorimetry, thermogravimetry and hot-stage microscopy.en_ZA
dc.identifier.apacitationJanjic, N. (2002). <i>Structures and thermal stability of selected organic inclusion compounds</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Chemistry. Retrieved from http://hdl.handle.net/11427/14968en_ZA
dc.identifier.chicagocitationJanjic, Nikolina. <i>"Structures and thermal stability of selected organic inclusion compounds."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Chemistry, 2002. http://hdl.handle.net/11427/14968en_ZA
dc.identifier.citationJanjic, N. 2002. Structures and thermal stability of selected organic inclusion compounds. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Janjic, Nikolina AB - The crystal structures of 1,1 ,6,6-Tetraphenyl-hexa-2,4-diyne-1 ,6-diol and 5-(3,5- Dicarboxyphenylethynyl)-isophthalic acid hosts with various guests have been elucidated. Depending on their structural properties and the way in which the host components pack, the guests may become trapped in spaces or voids, stacked in channels or sandwiched between layers of hosts. The crystal structures are stabilised by hydrogen bonding networks created by host-guest intermolecular interactions. The host hydroxy moieties adopt a trans conformation in 1,1 ,6,6-Tetraphenyl-hexa-2,4-diyne-1 ,6- diol host-guest inclusion componds. Host-guest hydrogen bonding in 5-(3,5- Dicarboxyphenylethynyl)-isophthalic acid salts occurs via the carboxylate group of the host anion. Hydrogen bond formation was the directing force determining the form of a host-guest array. The crystal structures of four inclusion compounds with 1,1 ,6,6-Tetraphenyl-hexa-2,4- diyne-1 ,6-diol host and six hydrated salt structures with 5-(3,5-Dicarboxyphenylethynyl)isophthalic acid host were solved using the single crystal X-ray diffraction technique. In addition the thermal stability and the structural properties of all compounds were investigated by thermal analysis techniques, including differential scanning calorimetry, thermogravimetry and hot-stage microscopy. DA - 2002 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2002 T1 - Structures and thermal stability of selected organic inclusion compounds TI - Structures and thermal stability of selected organic inclusion compounds UR - http://hdl.handle.net/11427/14968 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/14968
dc.identifier.vancouvercitationJanjic N. Structures and thermal stability of selected organic inclusion compounds. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Chemistry, 2002 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/14968en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemistryen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemistryen_ZA
dc.titleStructures and thermal stability of selected organic inclusion compoundsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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