Issue 42, 2015
From the journal:

RSC Advances

Uranium(vi) complexes with isonicotinic acid: from monomer to 2D polymer with unique U–N bonding†

Yingjie Zhang,*a   Inna Karatchevtseva,a   Jason R. Price,b   Igor Aharonovich,c   Fatima Kadi,a   Gregory R. Lumpkina  and  Feng Lid  

* Corresponding authors

a Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
E-mail: yingjie.zhang@ansto.gov.au

b Australian Synchrotron, 800 Blackburn Road, Clayton, VIC 3168, Australia

c School of Physics and Advanced Materials, University of Technology Sydney, Ultimo, New South Wales 2007, Australia

d School of Science and Health, University of Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia

Abstract

Two new uranium(VI) complexes with isonicotinic acid (HINT) have been synthesized and characterized. [(UO2)(NO3)2(HINT)2] (1) has a monomeric structure constructed of a hexagonal bipyramidal uranyl centre, two nitrate anions and two monodentate HINT in trans-positions. [(UO2)(OH)(INT)] (2) has a two-dimensional (2D) polymeric structure constructed of uranyl hydroxyl 1D pillars and μ3-bridging INT anions; the first observation of INT in μ3-bridging mode for U(VI) ion via U–N bonding. Thermal analysis confirmed both complexes lost coordinated INT ligands followed by further decomposition to form U3O8. Raman spectroscopy has confirmed the presence of uranyl ion and INT ligand in both complexes as well as the existence of nitrate vibrations in 1 and hydroxyl vibrations in 2. Their photoluminescence properties have been investigated.

Graphical abstract: Uranium(vi) complexes with isonicotinic acid: from monomer to 2D polymer with unique U–N bonding

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Article information

DOI
https://doi.org/10.1039/C5RA01272D
Article type
Paper
Submitted
22 Ama 2015
Accepted
02 Elb 2015
First published
02 Elb 2015

RSC Adv., 2015,5, 33249-33253

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Uranium(VI) complexes with isonicotinic acid: from monomer to 2D polymer with unique U–N bonding

Y. Zhang, I. Karatchevtseva, J. R. Price, I. Aharonovich, F. Kadi, G. R. Lumpkin and F. Li, RSC Adv., 2015, 5, 33249 DOI: 10.1039/C5RA01272D

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