Intercalation of iron hexacyano complexes in Zn,Al-hydrotalcite. Part 2. A Mid-infrared and Raman spectroscopic study
Kloprogge, J. Theo, Weier, Matt L., Crespo, Inmaculada, Ulibarri, Maria A., Barriga, Cristobalina, Rives, Vicente, Martens, Wayde N., & 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.
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.
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|Item Type:||Journal Article|
|Keywords:||Hexacyanoferrate, Hydrotalcite, Mid, Infrared spectroscopy, Raman spectroscopy|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|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:||09 Jun 2010 22:23|
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