Effect of the lanthanide ionic radius on the raman spectroscopy of lanthanide agardite minerals

Frost, Ray L. and Erickson, Kristy L. and Weier, Matt L. and McKinnon, Adam R. and Williams, Peter A. and Leverett, Peter (2004) Effect of the lanthanide ionic radius on the raman spectroscopy of lanthanide agardite minerals. Journal of Raman Spectroscopy, 35(11). pp. 961-966.

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DOI : 10.1002/jrs.1243

Abstract

Raman microscopy has been used to study the Raman spectra of a series of rare earth element agardites ACu6(AsO4)3(OH)6.3H2O where A = lanthanide3+. These minerals have a porous framework similar to that of zeolites with a structure based upon (A3+ )1-x(A2+)xCu6(OH)6(AsO4)3-x(AsO3OH)x . Two sets of AsO stretching vibrations were found and assigned to the vibrational modes of AsO4 and HAsO4 units. The position of selected bands was found to be sensitive to the lanthanide ionic radius. Raman spectra of the low wavenumber region are complex. Bending modes of the AsO4 and HAsO4 units were found to be sensitive to the ionic radius of the lanthanide ion. Linear relationships between positions of the Raman bands were derived, with correlation coefficients > 0.90.

ID Code:	814
Item Type:	Journal Article
Additional Information :	For more information, please refer to the journal's website (see hypertext link) or contact the author. Note: Co-authors McKinnon, Williams & Leverett are affiliated with the School of Science, University of Western Sydney
Keywords :	agardite, goudeyite, mixite, petersite, Raman spectroscopy
ISSN:	0377-0486
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions:	QUT Faculties and Divisions > Faculty of Science
Copyright Owner :	Copyright 2004 John Wiley & Sons
Deposited On:	14 Mar 2005
Last Modified:	03 Dec 2008 12:09

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