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Issue 3, 2014
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Synthesis, structure and photophysical properties of [UO2X2(O[double bond, length as m-dash]PPh3)2] (X = Cl, Br, I)

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Abstract

The synthesis of a series of uranyl compounds via oxidation of [Li(THF)4][UX5(THF)] (X = Cl, Br, I) in the presence of Ph3P[double bond, length as m-dash]O is described. The solid state structures of [Li(O[double bond, length as m-dash]PPh3)(MeCN)2]2[UO2Cl4], [UO2Br2(O[double bond, length as m-dash]PPh3)2] and [Li(O[double bond, length as m-dash]PPh3)4][I3], formed as a by-product from the oxidation of [Li(THF)4][UI5(THF)], is reported. The electronic absorption spectra and photoluminescence spectra of [UO2X2(O[double bond, length as m-dash]PPh3)2] (X = Cl, Br, I) have been measured and no significant changes in the position of the emission (515–530 nm) or the lifetimes (ca. 1 μs) are observed in this series. However a bathochromic shift is observed in the U–X LMCT band in the electronic absorption spectrum.

Graphical abstract: Synthesis, structure and photophysical properties of [UO2X2(O [[double bond, length as m-dash]] PPh3)2] (X = Cl, Br, I)

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Supplementary files

Article information


Submitted
10 Sep 2013
Accepted
23 Oct 2013
First published
24 Oct 2013

Dalton Trans., 2014,43, 1125-1131
Article type
Paper

Synthesis, structure and photophysical properties of [UO2X2(O[double bond, length as m-dash]PPh3)2] (X = Cl, Br, I)

E. Hashem, T. McCabe, C. Schulzke and R. J. Baker, Dalton Trans., 2014, 43, 1125
DOI: 10.1039/C3DT52480A

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