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Inorganics 2016, 4(1), 4; doi:10.3390/inorganics4010004

A Structural and Spectroscopic Study of the First Uranyl Selenocyanate, [Et4N]3[UO2(NCSe)5]

School of Chemistry, Trinity College, University of Dublin, 2 Dublin, Ireland
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Academic Editors: Stephen Mansell and Steve Liddle
Received: 30 October 2015 / Revised: 27 January 2016 / Accepted: 4 February 2016 / Published: 16 February 2016
(This article belongs to the Special Issue Rare Earth and Actinide Complexes)
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Abstract

The first example of a uranyl selenocyanate compound is reported. The compound [Et4N]3[UO2(NCSe)5] has been synthesized and fully characterized by vibrational and multinuclear (1H, 13C{1H} and 77Se{1H}) NMR spectroscopy. The photophysical properties have also been recorded and trends in a series of uranyl pseudohalides discussed. Spectroscopic evidence shows that the U–NCSe bonding is principally ionic. An electrochemical study revealed that the reduced uranyl(V) species is unstable to disproportionation and a ligand based oxidation is also observed. The structure of [Et4N]4[UO2(NCSe)5][NCSe] is also presented and Se···H–C hydrogen bonding and Se···Se chalcogen–chalcogen interactions are seen. View Full-Text
Keywords: uranyl; structural determination; photophysics uranyl; structural determination; photophysics
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MDPI and ACS Style

Nuzzo, S.; Browne, M.P.; Twamley, B.; Lyons, M.E.G.; Baker, R.J. A Structural and Spectroscopic Study of the First Uranyl Selenocyanate, [Et4N]3[UO2(NCSe)5]. Inorganics 2016, 4, 4.

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