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Issue 31, 2008
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Mercury–fluorine interactions: a matrix isolation investigation of Hg⋯F2, HgF2 and HgF4 in argon matrices

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Abstract

HgF2 and Hg have been trapped in dilute F2/Ar and neat F2 matrices, subjected to UV-Vis and vac-UV photolysis and annealing, with the products identified by FTIR, UV-Vis-NIR and Hg L3-edge XAFS spectroscopic techniques. Whilst there was no convincing evidence for the formation of HgF4 under our argon matrix isolation conditions, a new Hg⋯F2 complex was identified and subsequent photolysis yielded HgF2 very cleanly. Hg L3-edge EXAFS has provided the first experimental value of 1.94(2) Å for the Hg–F bond length in HgF2, which is in excellent agreement with the computational values incorporating relativistic effects.

Graphical abstract: Mercury–fluorine interactions: a matrix isolation investigation of Hg⋯F2, HgF2 and HgF4 in argon matrices

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Publication details

The article was received on 03 Apr 2008, accepted on 21 May 2008 and first published on 23 Jun 2008


Article type: Communication
DOI: 10.1039/B805608K
Citation: Phys. Chem. Chem. Phys., 2008,10, 4594-4605
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    Mercury–fluorine interactions: a matrix isolation investigation of Hg⋯F2, HgF2 and HgF4 in argon matrices

    J. F. Rooms, A. V. Wilson, I. Harvey, A. J. Bridgeman and N. A. Young, Phys. Chem. Chem. Phys., 2008, 10, 4594
    DOI: 10.1039/B805608K

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