An X-ray absorption spectroscopic study at the mercury LIII edge on phenylmercury(II) oxygen species
Loading...
Permanent Link
DOI
Publisher link
Rights
This is an authors version of an article published in the, Journal of the Chemical Society, Dalton Transactions, (c) The Royal Society of Chemistry 2000, at the Dalton Transactions webpage.
Abstract
The X-ray absorption spectra of the reference and model compounds HgCl2, PhHgCl, PhHgOAc and [(PhHg)2OH][BF4].H2O have been analysed in both the XANES and EXAFS regions, and the technique was extended to determine the structures of (PhHg)2O, PhHgOH, and the basic salts PhHgOH.PhHgNO3 and PhHgOH.(PhHg)2SO4, which were previously structurally uncharacterised. Results indicate that (PhHg)2O is a molecular species with Hg-O-Hg 135°, while PhHgOH contains the [(PhHg)2OH]+ cation and is better formulated as [(PhHg)2OH]OH. The same cation is also featured in the two basic salts. Electrospray mass spectral studies of PhHgOH in aqueous solutions show that [PhHgOH2]+, [(PhHg)2OH]+ and [(PhHg)3O]+ co-exist in solution in a pH-dependent equilibrium.
Citation
Jackson, W.J., Moen, A., Nicholson, B.K., Nicholson, D.G. & Porter, K. (2000). An X-ray absorption spectroscopic study at the mercury LIII edge on phenylmercury(II) oxygen species. J. Chem Soc., Dalton Trans, (4), 491-498.
Type
Series name
Date
Publisher
Royal Society of Chemistry