Structures of Werner clathrates

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.

Grantor

Department of Chemistry

Year dc:date.issued

1982

Author dc:creator

• Bond, Dianne Ruth

Advisor dc:contributor.advisor

• Nassimben, Luigi

• Werner clathraibs

Handle dc:identifier.uri

http://hdl.handle.net/11427/38874

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/38874