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Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Chemistry
2016
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| _version_ | 1867613586118934528 |
|---|---|
| access_status_str | Open Access |
| author | Grimmbacher, Tarron |
| author2 | Koch, Klaus R |
| author_browse | Grimmbacher, Tarron Koch, Klaus R |
| author_facet | Koch, Klaus R Grimmbacher, Tarron |
| author_sort | Grimmbacher, Tarron |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17512 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:38:30.053Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Chemistry |
| publisherStr | Department of Chemistry |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/17512 Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas Grimmbacher, Tarron Koch, Klaus R Chemistry Includes bibliographical references. 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. 2016-03-04T16:52:46Z 2016-03-04T16:52:46Z 1995 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/17512 eng application/pdf Department of Chemistry Faculty of Science University of Cape Town |
| spellingShingle | Chemistry Grimmbacher, Tarron Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas |
| thesis_degree_str | Doctoral |
| title | Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas |
| title_full | Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas |
| title_fullStr | Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas |
| title_full_unstemmed | Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas |
| title_short | Synthesis, characterisation and coordination chemistry of novel N-alkyl- and N,N-dialkyl-N'-acylthioureas |
| title_sort | synthesis characterisation and coordination chemistry of novel n alkyl and n n dialkyl n acylthioureas |
| topic | Chemistry |
| url | http://hdl.handle.net/11427/17512 |
| work_keys_str_mv | AT grimmbachertarron synthesischaracterisationandcoordinationchemistryofnovelnalkylandnndialkylnacylthioureas |