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The application of Raman spectroscopy to the study of the uranyl mineral coconinoite Fe2Al2(UO2)2(PO4)4(SO4)(OH)2•20H2O

By Ray L. Frost, Sara J. Palmer and Jiri Cejka

Abstract

Raman spectra of the uranyl containing mineral coconinoite, Fe2Al2(UO2)2(PO4)4(SO4)(OH)2•20H2O, are presented and compared with the mineral’s infrared spectra. Bands connected with (UO2)2+, (PO4)3- , (SO4)2-, (OH)- and H2O stretching and bending vibrations, are assigned. Approximate U-O bond lengths in uranyl, (UO2)2+, and O-H...O hydrogen bond lengths are calculated from the wavenumbers of the U-O stretching vibrations and (OH)- and H2O stretching vibrations, respectively, and compared with published data for similar natural and synthetic compounds

Topics: 030606 Structural Chemistry and Spectroscopy, coconinoite, mineral, uranyl, phosphate, sulphate, hydroxyl, water molecules, Raman spectroscopy, infrared spectroscopy
Publisher: Taylor & Francis
Year: 2011
DOI identifier: 10.1080/00387010.2010.551445
OAI identifier: oai:eprints.qut.edu.au:42486

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