The structures of two new Werner clathrates have been elucidated by X-ray diffraction. Ni(NCS) 2(c6 Hf) 2(c11ttgN) 2.methyl cello solve is monoclinic with a= 10,648(5), b = 23,005(12), a= 16,294(8).R, S = 98,04(2) 0 , Z = 4 and the space group C2/0 • The guest, methyl cello solve is disordered and lies at a centre of inversion. Ni(NCS) 2(c6 H7 N) 4.p-cymene is tetragonal with a= 17,105(9), b = 17, 105(9), a= 23,837(12).R, Z = 8 and the space group I4 1 fa• The guest, p-cymene is disordered and lies at a centre of inversion. The stoichiometry of the clathrates was investigated by various chemical methods including thermogravimetric analysis, differential thermal analysis, mass spectroscopy and proton nuclear magnetic resonance spectroscopy. Host-guest non-bonded energy relationships using atom-pair potentials are examined. Attempts have been made to estimate the association constants of sore of these computed in solution by proton nuclear magnetic resonance spectroscopy.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uct/oai:localhost:11427/38874 |
| Date | 27 September 2023 |
| Creators | Bond, Dianne Ruth |
| Contributors | Nassimben, Luigi |
| Publisher | Faculty of Science, Department of Chemistry |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Master Thesis, Masters, MSc |
| Format | application/pdf |
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