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Title: Reactions of the sulphur group tetrafluorides with some rhodium complexes
Author: Watson, Paul
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 1990
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The complexes Rh(CO) x (PEt3)2 [X = Cl, Br, I, NCS, NCO] have been reacted with SF4, SeF4 and TeF4 in CD2Cl2 and studied by multinuclear n.m.r. spectroscopy. In each of the reactions of SF4 and SeF4, a range of Rh(III) complexes are formed which contain the SF3 or novel SeF3 ligand. Most of these complexes also contain fluorine bonded directly to rhodium and those which do not are believed to be the result of halogen exchange with solvent. The ratios of products in each reaction are dependant upon the size of X in the starting material. The fluxionalities of the MF3 group [M = S, Se] appears to be dependent upon the size of the ligand which is trans to it. The products of the reactions of Rh(CO) X (PEt3)2 with TeF4 similarly produce complexes containing the novel TeF3 ligand. However, none of these complexes contain fluorine bonded directly to rhodium. Multinuclear n.m.r. spectroscopic data suggests that these complexes are 5 coordinate square pyramidal cations with TeF5- as counterion.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available