Intercalation of iron hexacyano complexes in Zn,Al-hydrotalcite. Part 2. A Mid-infrared and Raman spectroscopic study

Kloprogge, J. Theo and Weier, Matt L. and Crespo, Inmaculada and Ulibarri, Maria A. and Barriga, Cristobalina and Rives, Vicente and Martens, Wayde N. and Frost, Ray L. (2004) Intercalation of iron hexacyano complexes in Zn,Al-hydrotalcite. Part 2. A Mid-infrared and Raman spectroscopic study. Journal of Solid State Chemistry, 177(4-5). pp. 1382-1387.

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DOI : 10.1016/j.jssc.2003.11.034

Abstract

Combined mid-IR and Raman spectroscopies indicate that intercalation of hexacyanoferrate (II) and (III) in the interlayer space of a Zn,Al hydrotalcite dried at 60 degrees Celsius leads to layered solids where the intercalated species correspond to both hexacyanoferrate(II) and (III). This is an indication that depending on the oxidation state of the initial hexacyanoferrate, partial oxidation and reduction takes place upon intercalation. The symmetry of the intercalated hexacyanoferrate decreases from Oh existing in the free anions to D3d. The observation of a broad band around 2080 cm-1 is indicative of the removal of cyanide from the intercalation complex to the outside surface of the crystals. Its position in the intercalation complex is probably filled by an hydroxyl group. NOTE: Figures are in a separate file

ID Code:	904
Item Type:	Journal Article
Keywords :	Hexacyanoferrate, Hydrotalcite, Mid, Infrared spectroscopy, Raman spectroscopy
ISSN:	0022-4596
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:	19 Jul 2006
Last Modified:	03 Dec 2008 12:14

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