Structure and reactivity of diol host-guest compounds

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dc.contributor.advisorNassimbeni, Luigi Ren_ZA
dc.contributor.authorHarvey, Grant Andrewen_ZA
dc.date.accessioned2016-02-26T07:20:55Z
dc.date.available2016-02-26T07:20:55Z
dc.date.issued1990en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThe crystal structures of trans-9, 10-dihydroxy-9, 10-diphenyl-9, 10- dihydroanthracene with various guest molecules have been determined by X-ray diffraction. The guests were 2-butanone, 4-vinylpyridine, 4-methylpyridine and 2-methylpyridine. The host to guest ratios were determined by microanalysis and density measurements. The change of the overall host lattice structure upon guest release was studied by X-ray powder diffraction. The thermal characteristics of the compounds were studied using thermogravimetric analysis and differential scanning calorimetry. Guest desorption from three of the four compounds occurred in a single step whereupon the host framework collapsed back to the guest-free structure. The compound containing 4-methylpyridine, released the guest molecules in a two-step process. Evidence of a new host phase was identified from the XRD pattern of this intermediate phase. On further guest release, the intermediate phase converted to the guest-free host structure. In an attempt to reconcile thermodynamics with structure, the correlation between hydrogen bond length and guest desorption enthalpy was investigated.en_ZA
dc.identifier.apacitationHarvey, G. A. (1990). <i>Structure and reactivity of diol host-guest compounds</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Chemistry. Retrieved from http://hdl.handle.net/11427/17286en_ZA
dc.identifier.chicagocitationHarvey, Grant Andrew. <i>"Structure and reactivity of diol host-guest compounds."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Chemistry, 1990. http://hdl.handle.net/11427/17286en_ZA
dc.identifier.citationHarvey, G. 1990. Structure and reactivity of diol host-guest compounds. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Harvey, Grant Andrew AB - The crystal structures of trans-9, 10-dihydroxy-9, 10-diphenyl-9, 10- dihydroanthracene with various guest molecules have been determined by X-ray diffraction. The guests were 2-butanone, 4-vinylpyridine, 4-methylpyridine and 2-methylpyridine. The host to guest ratios were determined by microanalysis and density measurements. The change of the overall host lattice structure upon guest release was studied by X-ray powder diffraction. The thermal characteristics of the compounds were studied using thermogravimetric analysis and differential scanning calorimetry. Guest desorption from three of the four compounds occurred in a single step whereupon the host framework collapsed back to the guest-free structure. The compound containing 4-methylpyridine, released the guest molecules in a two-step process. Evidence of a new host phase was identified from the XRD pattern of this intermediate phase. On further guest release, the intermediate phase converted to the guest-free host structure. In an attempt to reconcile thermodynamics with structure, the correlation between hydrogen bond length and guest desorption enthalpy was investigated. DA - 1990 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1990 T1 - Structure and reactivity of diol host-guest compounds TI - Structure and reactivity of diol host-guest compounds UR - http://hdl.handle.net/11427/17286 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17286
dc.identifier.vancouvercitationHarvey GA. Structure and reactivity of diol host-guest compounds. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Chemistry, 1990 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17286en_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.subject.otherClathrate compounds - Reactivityen_ZA
dc.subject.otherClathrate compounds - Structureen_ZA
dc.titleStructure and reactivity of diol host-guest 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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