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Structure and decomposition of diol inclusion compounds
The inclusion properties of the host, trans-9, 10-dihydroxy-9, 10-diphenyl-9,10- dihydroanthracene, with various guest molecules, namely cyclohexanone, 2- methylcyclohexanone, 3-methylcyclohexanone and 4-methylcyclohexanone, were investigated. The host to guest ratios were determined by programmed t...
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| Format: | Thesis |
| Language: | English |
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Department of Chemistry
2018
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| _version_ | 1867613236304543744 |
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| access_status_str | Open Access |
| author | Su, Hong |
| author2 | Coetzee, Anita |
| author_browse | Coetzee, Anita Su, Hong |
| author_facet | Coetzee, Anita Su, Hong |
| author_sort | Su, Hong |
| collection | Thesis |
| description | The inclusion properties of the host, trans-9, 10-dihydroxy-9, 10-diphenyl-9,10- dihydroanthracene, with various guest molecules, namely cyclohexanone, 2- methylcyclohexanone, 3-methylcyclohexanone and 4-methylcyclohexanone, were investigated. The host to guest ratios were determined by programmed temperature thermogravimetry. Two of the four molecular structures were elucidated using single crystal X-ray diffraction. All the inclusion compounds were also characterised by differential scanning calorimetry, hotstage microscopy and Xray powder diffraction. The kinetics of decomposition of the inclusion compound containing the guest cyclohexanone were studied using different experimental techniques under isothermal conditions: these were the quartz microbalance, the levitating balance and isothermal thermogravimetry. The kinetics of decomposition of the other three compounds were studied by means of isothermal thermogravimetry. The Arrhenius parameters determined showed a compensation effect between the activation energies and pre-exponential factors. Competition experiments were performed to determine the selectivity of the host for the four guest substances. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/27009 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:56.154Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| 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:11427/27009 Structure and decomposition of diol inclusion compounds Su, Hong Coetzee, Anita Chemistry The inclusion properties of the host, trans-9, 10-dihydroxy-9, 10-diphenyl-9,10- dihydroanthracene, with various guest molecules, namely cyclohexanone, 2- methylcyclohexanone, 3-methylcyclohexanone and 4-methylcyclohexanone, were investigated. The host to guest ratios were determined by programmed temperature thermogravimetry. Two of the four molecular structures were elucidated using single crystal X-ray diffraction. All the inclusion compounds were also characterised by differential scanning calorimetry, hotstage microscopy and Xray powder diffraction. The kinetics of decomposition of the inclusion compound containing the guest cyclohexanone were studied using different experimental techniques under isothermal conditions: these were the quartz microbalance, the levitating balance and isothermal thermogravimetry. The kinetics of decomposition of the other three compounds were studied by means of isothermal thermogravimetry. The Arrhenius parameters determined showed a compensation effect between the activation energies and pre-exponential factors. Competition experiments were performed to determine the selectivity of the host for the four guest substances. 2018-01-25T14:01:38Z 2018-01-25T14:01:38Z 1998 Master Thesis Masters MSc http://hdl.handle.net/11427/27009 eng application/pdf Department of Chemistry Faculty of Science University of Cape Town |
| spellingShingle | Chemistry Su, Hong Structure and decomposition of diol inclusion compounds |
| thesis_degree_str | Master's |
| title | Structure and decomposition of diol inclusion compounds |
| title_full | Structure and decomposition of diol inclusion compounds |
| title_fullStr | Structure and decomposition of diol inclusion compounds |
| title_full_unstemmed | Structure and decomposition of diol inclusion compounds |
| title_short | Structure and decomposition of diol inclusion compounds |
| title_sort | structure and decomposition of diol inclusion compounds |
| topic | Chemistry |
| url | http://hdl.handle.net/11427/27009 |
| work_keys_str_mv | AT suhong structureanddecompositionofdiolinclusioncompounds |