Issue 12, 2009
From the journal:

CrystEngComm

The uranyl tetrachloride anion as a tecton in the assembly of U(VI) hybrid materials†

Nicholas P. Deifela  and  Christopher L. Cahill*ab  

* Corresponding authors

a Department of Chemistry, The George Washington University, 725 21st Street, NW, Washington, D.C., USA
E-mail: cahill@gwu.edu

b Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, D.C., USA

Abstract

Seven compounds containing the uranyl tetrachloride anion ([UO2Cl4 ]2−) have been synthesized through room temperature reactions of uranium (VI) oxyacetate with several pyridinium cations in highly acidic Cl− solutions. The resulting compounds have been characterized viasingle-crystal X-ray diffraction and fluorescence spectroscopy. These compounds represent an importat step in the synthesis of novel uranium-bearing materials in that their assembly explicitly employs the use of non-covalent bonds, specifically through a systematic pairing of [UO2Cl4]2− with protonated pyridyl species. Four of these compounds exhibit a bifurcated hydrogen bond (NH⋯Cl2U) that leads to the formation of a linear “ribbon motif” which has been previously explored in similar perhalometallate systems. The remaining three compounds exhibit different bonding motifs, that likely result from the non-linear geometry of their organic cations.

Graphical abstract: The uranyl tetrachloride anion as a tecton in the assembly of U(VI) hybrid materials

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Article information

DOI
https://doi.org/10.1039/B911470J
Article type
Paper
Submitted
11 Jun 2009
Accepted
29 Jul 2009
First published
18 Aug 2009

CrystEngComm, 2009,11, 2739-2744

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The uranyl tetrachloride anion as a tecton in the assembly of U(VI) hybrid materials

N. P. Deifel and C. L. Cahill, CrystEngComm, 2009, 11, 2739 DOI: 10.1039/B911470J

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