Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas

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dc.contributor.advisorKoch, Klaus Ren_ZA
dc.contributor.authorGrimmbacher, Tarronen_ZA
dc.date.accessioned2016-03-04T16:52:46Z
dc.date.available2016-03-04T16:52:46Z
dc.date.issued1995en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractA series of N-alkyl- and N,N-dialkyl-N'-acylthioureas are synthesised and characterised. The crystal structure of N-butyl-N'-benzoylthiourea indicates that an intramolecular hydrogen bond locks the potentially bidentate chelate moiety into a planar six-membered ring with an overall rod-like molecular structure. The rod-like structure of the N-alkyl-N'-benzoylthioureas is exploited and the synthesis and characterisation of a novel series of liquid crystals based on N-(p-alkyl(oxy))aniline-N'-(p-alkyl(oxy))benzoylthiourea is discussed. The liquid-crystalline phases are identified with the aid of Polarising Optical Microscopy and confirmed by Differential Scanning Calorimetry studies. The compounds display nematic, smectic A or a combination of these liquid crystal phases. The X-ray crystal structure of N-(p-hexyloxy)aniline-N'-(pmethyloxy) benzoylthiourea shows co-planarity of the aromatic and hydrogen-bonded six-membered rings. Intennolecular hydrogen bond interactions between adjacent molecules allow for favourable molecular interaction for the formation of liquid crystal phases.en_ZA
dc.identifier.apacitationGrimmbacher, T. (1995). <i>Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Chemistry. Retrieved from http://hdl.handle.net/11427/17512en_ZA
dc.identifier.chicagocitationGrimmbacher, Tarron. <i>"Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Chemistry, 1995. http://hdl.handle.net/11427/17512en_ZA
dc.identifier.citationGrimmbacher, T. 1995. Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Grimmbacher, Tarron AB - A series of N-alkyl- and N,N-dialkyl-N'-acylthioureas are synthesised and characterised. The crystal structure of N-butyl-N'-benzoylthiourea indicates that an intramolecular hydrogen bond locks the potentially bidentate chelate moiety into a planar six-membered ring with an overall rod-like molecular structure. The rod-like structure of the N-alkyl-N'-benzoylthioureas is exploited and the synthesis and characterisation of a novel series of liquid crystals based on N-(p-alkyl(oxy))aniline-N'-(p-alkyl(oxy))benzoylthiourea is discussed. The liquid-crystalline phases are identified with the aid of Polarising Optical Microscopy and confirmed by Differential Scanning Calorimetry studies. The compounds display nematic, smectic A or a combination of these liquid crystal phases. The X-ray crystal structure of N-(p-hexyloxy)aniline-N'-(pmethyloxy) benzoylthiourea shows co-planarity of the aromatic and hydrogen-bonded six-membered rings. Intennolecular hydrogen bond interactions between adjacent molecules allow for favourable molecular interaction for the formation of liquid crystal phases. DA - 1995 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1995 T1 - Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas TI - Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas UR - http://hdl.handle.net/11427/17512 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17512
dc.identifier.vancouvercitationGrimmbacher T. Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Chemistry, 1995 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17512en_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.titleSynthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureasen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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