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

Rooms, John F.; Wilson, Antony V.; Harvey, Ian; Bridgeman, Adam J.; Young, Nigel A.

Authors

John F. Rooms

Antony V. Wilson

Ian Harvey

Adam J. Bridgeman

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Dr Nigel Young N.A.Young@hull.ac.uk
Senior Lecturer/ Director of Studies/ Deputy Head of Chemistry and Biochemistry/ Industrial Placements Coordinator



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) angstrom for the Hg-F bond length in HgF2, which is in excellent agreement with the computational values incorporating relativistic effects.

Citation

Rooms, J. F., Wilson, A. V., Harvey, I., Bridgeman, A. J., & Young, N. A. (2008). Mercury–fluorine interactions: a matrix isolation investigation of Hg⋯F2, HgF2 and HgF4 in argon matrices. Physical chemistry chemical physics : PCCP, 10(31), 4594-4605. doi:10.1039/b805608k

Journal Article Type Article
Acceptance Date May 21, 2008
Publication Date Jun 23, 2008
Journal Physical Chemistry Chemical Physics
Print ISSN 1463-9076
Electronic ISSN 1463-9084
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 10
Issue 31
Pages 4594-4605
DOI https://doi.org/10.1039/b805608k
Keywords Physical and Theoretical Chemistry; General Physics and Astronomy
Public URL https://hull-repository.worktribe.com/output/399994
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2008/CP/b805608k#!divAbstract