Optical absorption, infrared, Raman and EPR spectral studies on natural Iowaite mineral
Data(s) |
01/01/2010
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Resumo |
Natural iowaite, magnesium–ferric oxychloride mineral having light green color originating from Australia has been characterized by EPR, optical, IR, and Raman spectroscopy. The optical spectrum exhibits a number of electronic bands due to both Fe(III) and Mn(II) ions in iowaite. From EPR studies, the g values are calculated for Fe(III) and g and A values for Mn(II). EPR and optical absorption studies confirm that Fe(III) and Mn(II) are in distorted octahedral geometry. The bands that appear both in NIR and Raman spectra are due to the overtones and combinations of water and carbonate molecules. Thus EPR, optical, and Raman spectroscopy have proven most useful for the study of the chemistry of natural iowaite and chemical changes in the mineral. |
Formato |
application/pdf |
Identificador | |
Publicador |
Springer Verlag |
Relação |
http://eprints.qut.edu.au/31608/1/31608.pdf DOI:10.1007/s11243-010-9331-8 Frost, Ray L., Reddy, S. Lakshmi, Maheswaramma, K. Sesha, Reddy, G. Siva , Reddy, B. Jagannadha, & Endo , Tamio (2010) Optical absorption, infrared, Raman and EPR spectral studies on natural Iowaite mineral. Transition Metal Chemistry, 35(3), pp. 331-316. |
Direitos |
Copyright 2010 Springer Verlag The original publication is available at SpringerLink http://www.springerlink.com |
Fonte |
Chemistry; Faculty of Science and Technology |
Palavras-Chave | #030600 PHYSICAL CHEMISTRY (INCL. STRUCTURAL) #030606 Structural Chemistry and Spectroscopy #Iowaite mineral, hydrotalcite, optical absorption spectrum, EPR spectrum, |
Tipo |
Journal Article |