Hydrogen bonding in selected vanadates: a Raman and infrared spectroscopy study

Frost, Ray L. and Erickson, Kristy L. and Weier, Matt L. (2004) Hydrogen bonding in selected vanadates: a Raman and infrared spectroscopy study. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 60(10). pp. 2419-2423.

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DOI : 10.1016/j.saa.2003.12.017

Abstract

Water plays an important role in the stability of minerals containing the deca and hexavanadates ions. A selection of minerals including pascoite, huemulite, barnesite, hewettite, metahewettite, hummerite has been analysed. Infrared spectroscopy combined with Raman spectroscopy has enabled the spectra of the water HOH stretching bands to be determined. The use of the Libowitzky type function allows for the estimation of hydrogen bond distances to be determined. The strength of the hydrogen bonds can be assessed by these hydrogen bond distances. An arbitrary value of 2.74 Å was used to separate the hydrogen bonds into two categories such that bond distances less than this value are considered as strong hydrogen bonds whereas hydrogen bond distances greater than this value are considered relatively weaker. Importantly infrared spectroscopy enables the estimation of hydrogen bond distances using an empirical function.

ID Code:	806
Item Type:	Journal Article
Keywords :	pascoite, huemulite, barnesite, hewettite, metahewettite, hummerite, vanadates, Raman spectroscopy, infrared spectroscopy
ISSN:	1386-1425
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 Elsevier
Copyright Statement :	Reproduced in accordance with the copyright policy of the publisher: This journal is available online.
Deposited On:	10 Mar 2005
Last Modified:	03 Dec 2008 12:08

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