- Mass spectroscopic and nuclear magnetic resonance evidence confirming the existence of methyl mercury hydride
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Mass spectroscopic and NMR evidence involving deuterium labelling is presented for the existence of CH3HgH.
- Craig, Peter J.,Mennie, Darren,Needham, Michael,Oshah, Naman,Donard, Olivier F.X.,Martin, Fabienne
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- Vinylmercury Hydrides: Synthesis and Spectroscopic Characterization
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The first vinylmercury hydrides, and among them the parent compound, have been prepared by a chemoselective reduction of the corresponding vinylmercury chlorides with tributylstannane in the presence of a radical inhibitor. These hydrides have been characterized on the basis of their spectral data (1H, 13C, and 199Hg NMR spectroscopy and mass spectrometry). The photoelectron spectra of the ethenylmercury hydride displays bands at 9.79,10.13, 11.41, and 13.20 eV. On the basis of photoelectron spectra and ab initio quantum chemical calculations some (d-p)π interaction between the vinyl π-system and the mercury d-orbitals could be concluded. Vinylmercury hydrides have been condensed and then revaporized in vacuum at low temperature, but they exhibit a very low stability at room temperature even diluted in toluene (τ1/2 ≈ l min); elemental mercury and the corresponding divinylmercury were formed under these conditions.
- Guillemin, Jean-Claude,Bellec, Nathalie,Szetsi, Sandor Kis,Nyulaszi, Laszlo,Veszpremi, Tamas
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p. 6586 - 6591
(2008/10/09)
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- Nuclear magnetic resonance and mass spectra of organomercury hydrides and deuterides
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A series of new organomercury hydrides, including aromatic and fluoroaromatic compounds, have been characterised by mass and NMR spectroscopy. Unusual features of these compounds included an unusually downfield chemical shift for the Hg-H proton, confirmed by deuterium substitution, and a high value for the 199Hg-H coupling constant. The half-life for dilute solutions of methylmercury hydride was in the region of 1-3 h.
- Craig, Peter J.,Needham, Michael I.,Ostah, Naaman,Stojak, Grace H.,Symons, Martyn,Teesdale-Spittle, Paul
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p. 153 - 156
(2007/10/03)
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- Characterization of Alkyl- and Aryl-mercuric Hydrides by NMR Spectroscopy
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Low-temperature NMR measurements (1H, 13C, 199Hg) confirm that organomercuric hydrides (RHgH; R=alkyl, cycloalkyl, phenyl) are characterisable species in solution.
- Kwetkat, Klaus,Kitching, William
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p. 345 - 348
(2007/10/02)
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