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|Title: ||Five-membered sulfur-nitrogen ring compounds|
|Authors: ||Matuska, Vit|
|Supervisors: ||Woollins, J. Derek|
|Keywords: ||Sulfur-nitrogen ring compounds|
Density functional theory
|Issue Date: ||Nov-2009|
|Abstract: ||A series of 1,3,2,4,5-dithiadiazarsoles with the general formula RAs(S₂N₂) (R = Me, Et, i-Pr, t-Bu, Ph and Mes) have been prepared and characterised by multinuclear NMR, IR
and Raman spectroscopies and mass spectrometry. The X-ray structures of PhAs(S₂N₂) and MesAs(S₂N₂) were determined.
The low temperature X-ray structures of the half-sandwich 5,1,3,2,4-metalladithiadiazoles
Cp*M(S₂N₂) (M = Co, Ir) were determined and Cp*Rh(S₂N₂) was prepared. All three metalladithiadiazoles were characterised by multinuclear NMR, IR and Raman spectroscopies and mass spectrometry. The X-ray structures of complexes [Cp*RhCp*]Cl,[Cp*Rh(μ-S₃N₂)(μ-S₂O₃)RhCp*] and Cp*Ir[S₂N₂(IrCl₂Cp*)] obtained during this work were determined.
The low temperature X-ray structure of Roesky's sulfoxide (S₃N₂O) is presented together with assignments of its vibrational spectra as suggested by theoretical calculations.
The experimental structures of the metalladithiadiazoles and that of Roesky's sulfoxide are compared with calculated geometries.
A limited amount of simple experiments have been carried out with selected title compounds to get an insight into their reactivity.|
|Publisher: ||University of St Andrews|
|Appears in Collections:||Chemistry Theses|
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