Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Structures and thermal stability of selected organic inclusion compounds
Includes bibliographical references.
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Chemistry
2015
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613186672295936 |
|---|---|
| access_status_str | Open Access |
| author | Janjic, Nikolina |
| author_browse | Janjic, Nikolina |
| author_facet | Janjic, Nikolina |
| author_sort | Janjic, Nikolina |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/14968 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:08.355Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| 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:11427/14968 Structures and thermal stability of selected organic inclusion compounds Janjic, Nikolina Chemistry Includes bibliographical references. 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. 2015-11-13T13:07:00Z 2015-11-13T13:07:00Z 2002 Master Thesis Masters MSc http://hdl.handle.net/11427/14968 eng application/pdf Department of Chemistry Faculty of Science University of Cape Town |
| spellingShingle | Chemistry Janjic, Nikolina Structures and thermal stability of selected organic inclusion compounds |
| thesis_degree_str | Master's |
| title | Structures and thermal stability of selected organic inclusion compounds |
| title_full | Structures and thermal stability of selected organic inclusion compounds |
| title_fullStr | Structures and thermal stability of selected organic inclusion compounds |
| title_full_unstemmed | Structures and thermal stability of selected organic inclusion compounds |
| title_short | Structures and thermal stability of selected organic inclusion compounds |
| title_sort | structures and thermal stability of selected organic inclusion compounds |
| topic | Chemistry |
| url | http://hdl.handle.net/11427/14968 |
| work_keys_str_mv | AT janjicnikolina structuresandthermalstabilityofselectedorganicinclusioncompounds |