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Electron paramagnetic resonance and optical absorption spectral studies on covellite mineral

Frost, Ray L., Sowjanya, G., Reddy, N.C.G., Reddy, S. Lakshmi, & Reddy, B. Jagannadha (2008) Electron paramagnetic resonance and optical absorption spectral studies on covellite mineral. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 71(3), pp. 751-754.

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Abstract

A covellite mineral sample from Coquimbo region, Chile is used in the present study. An EPR study on powdered sample confirms the presence of Mn(II) and Cu(II). Optical absorption spectrum indicates that Fe(II)and Cu(II) impurities are present in octahedral structure. Bands in the near-infrared from 7000-5000 cm-1 result from the overtones of the first fundamental OH-stretching modes.

Impact and interest:

5 citations in Scopus
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3 citations in Web of Science®

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401 since deposited on 20 Oct 2008
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ID Code: 15258
Item Type: Journal Article
Keywords: Covellite, EPR, Optical absorption, NIR spectroscopy, Copper, Manganese, Iron
DOI: 10.1016/j.saa.2007.12.053
ISSN: 1386-1425
Subjects: 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)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2008 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 20 Oct 2008
Last Modified: 29 Feb 2012 23:49

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