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EPR, UV-visible and near infrared spectroscopic characterization of dolomite

Frost, R. L., Reddy, B. J., Sowjanya, G., Reddy, N.C.G., Reddy, G. Siva, & Reddy, S. Lakshmi (2008) EPR, UV-visible and near infrared spectroscopic characterization of dolomite. Advances in Condensed Matter Physics, 2008, pp. 1-8.

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Abstract

Dolomite mineral samples having white and light green colours of Indian origin have been characterized by EPR, optical and NIR spectroscopy. The optical spectrum exhibits a number of electronic bands due to presence of Fe(III) ions in the mineral. From EPR studies, the parameters of g for Fe(III) and g, A and D for Mn(II) are evaluated and the data confirm that the ions are in distorted octahedron. Optical absorption studies reveal that Fe(III) is in distorted octahedron. The bands in NIR spectra are due to the overtones and combinations of water molecules. Thus EPR and optical absorption spectral studies have proven useful for the study of the chemistry of dolomite.

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2 citations in Web of Science®
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ID Code: 28724
Item Type: Journal Article
Additional Information: Published version is freely available online via DOI.
Keywords: Dolomite mineral, optical absorption spectrum, EPR spectrum,
DOI: 10.1155/2008/175862
ISSN: 1687-8108
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > School of Physical & Chemical Sciences
Copyright Owner: Copyright 2008 S. Lakshmi Reddy et al.
Copyright Statement: This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Deposited On: 19 Nov 2009 15:23
Last Modified: 11 Aug 2011 03:34

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