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Spectroscopic studies of sulfite-based polyoxometalates at high temperature and high pressure

Cabrera, RQ; Firth, S; Blackman, CS; Long, D-L; Cronin, L; McMillan, PF; (2012) Spectroscopic studies of sulfite-based polyoxometalates at high temperature and high pressure. JOURNAL OF SOLID STATE CHEMISTRY , 186 171 - 176. 10.1016/j.jssc.2011.12.005. Green and gold open access

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Abstract

Structural changes occurring within non-conventional Dawson-type [α/β-Mo18O54(SO3)2]4− polyanions in the form of tetrapentylammonium salts were studied by a combination of IR, Raman and visible spectroscopy at high temperature and high pressure. Evidence of the formation of bronze-type materials above 400 K and also upon pressurization to 8 GPa is presented. This conclusion is suggested to be a general result for polyoxometalate compounds subjected to extreme conditions and it opens opportunities for the design of new materials with interesting optical and electronic properties.

Type:Article
Title:Spectroscopic studies of sulfite-based polyoxometalates at high temperature and high pressure
Open access status:An open access publication. A version is also available from UCL Discovery.
DOI:10.1016/j.jssc.2011.12.005
Publisher version:http://dx.doi.org/10.1016/j.jssc.2011.12.005
Language:English
Additional information:This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Keywords:Polyoxometalates, Spectroscopy, Bronze-like species, High temperature, High pressure, Thermochromic properties
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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