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Raman spectroscopic study of the uranyl carbonate mineral voglite

Frost, Ray L., Cejka, Jiri, Ayoko, Godwin A., & Dickfos, Marilla J. (2008) Raman spectroscopic study of the uranyl carbonate mineral voglite. Journal of Raman Spectroscopy, 39(3), pp. 374-379.

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Abstract

Raman spectroscopy complimented with infrared spectroscopy has been used to study the uranyl carbonate mineral voglite. The mineral has the formula Ca2Cu2+(UO2)(CO3)3.6H2O and bands attributed to these vibrating units are readily identified in the Raman spectrum. Symmetric stretching modes at 836 and 1094 cm-1 are assigned to v1 (UO2)2+, and v1 (CO3)2- units. The v3 antisymmetric stretching modes of (UO2)2+ are not observed in the Raman spectrum but may be readily observed in the infrared spectrum at 898 cm-1. The v3 antisymmetric stretching mode of (CO3)2- is observed in the Raman spectrum at 1369 cm-1 as a low intensity band as is also the ν3 (CO3)2- infrared modes at 1362, 1425, 1509 and 1566 cm-1. No ν2 (CO3)2- Raman bending modes are observed for voglite. The Raman band at 749 cm-1 and the two infrared bands at 747 and 709 cm-1 are assigned to the ν4 (CO3)2- bending modes. U-O bond and O-H…O bond lengths in the structure of voglite were inferred from the infrared and Raman spectra.

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ID Code: 12854
Item Type: Journal Article
Keywords: voglite, mineral, uranyl carbonate, molecular water, Raman spectroscopy, infrared spectroscopy
DOI: 10.1002/jrs.1829
ISSN: 0377-0486
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)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Schools > School of Psychology & Counselling
Past > Schools > School of Physical & Chemical Sciences
Copyright Owner: Copyright 2008 John Wiley & Sons
Copyright Statement: The definite version is available on publication at www3.interscience.wiley.com
Deposited On: 04 Mar 2008
Last Modified: 29 Feb 2012 23:50

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