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Title: The oxide fluoride chemistry of bromine, selenium and suplhur
Author: Wootton, Lee John
Awarding Body: University of Leicester
Current Institution: University of Leicester
Date of Award: 1997
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The transition metal carbonyls [Re2(CO)10], [Mn2(CO)10] and [Ru(CO)3(PPh3)2], and elemental iodine have been reacted with Xe(OSeF5)2. The products have been fully characterised by a combination of mass spectrometry, infrared spectroscopy 19F, 13C and 31P{1H} (where appropriate) NMR spectroscopies. Further characterisation of the novel compounds Xe(OSeF5)2, [Re(CO)5(OSeF5)] and [Mn(CO)5(OSeF5)] by EXAFS spectroscopy is reported. An extensive review of the halogen oxide fluorides has been carried out and attempts were made to synthesise a range of fluorides and oxide fluorides of bromine. The bromine fluorides [BrF2][AsF6], [BrF4][Sb2F11], K[BrF4] and Cs[BrF6] were successfully characterised using EXAFS spectroscopy. The compound Cs[BrOF4] has been synthesised and the application of EXAFS spectroscopy has yielded internal bond parameters. The area of fluorosulphate chemistry has been reviewed and reactions have been carried out between the superacid HSO3F and a range of transition metal carbonyl complexes and Ti, Hf and Zr derivatives. The complexes produced were characterised using mass spectrometry, infrared spectroscopy and 1H, 13C, 13C{1H} and 19F NMR spectroscopies. The protonation of the carbonyl clusters [Ir4(CO)12], [Os3(CO)12] and [Ru3(CO)12] by HSO3F was investigated. The systems are found to be the same as those previously observed for the superacid AHF.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available