Raman spectroscopic study of the uranyl carbonate mineral zellerite
Raman and infrared spectra of the uranyl mineral zellerite, Ca[(UO2)(CO3)2(H2O)2].3H2O, were measured and tentatively interpreted. U-O bond in uranyl and O-H…O hydrogen bonds were calculated from the vibrational spectra. The presence of structurally nonequivalent water molecules in the crystal structure of zellerite was inferred. Proposed chemical formula of zellerite is supported.
Raman bands at 3514, 3375 and 2945 cm-1 and broad infrared bands at 3513, 3396 and 3326 cm-1 are related to the vOH stretching vibrations of hydrogen bopnded water molecules. Observed wavenumbers of these vibrations prove that in fact hydrogen bonds participate in the crystal structure of zellerite. The presence of two bands at 1618 and 1681 cm-1 proves structurally distinct and nonequivalent water molecules in the crystal structure of zellerite.
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|Item Type:||Journal Article|
|Keywords:||zellerite, uranyl diaquodicarbonate, molecular water, Raman and infrared spectroscopy, U, O bond lengths, O, H, O bond lengths|
|Subjects:||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)
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 John Wiley & Sons|
|Copyright Statement:||The definite version is available on publication at www3.interscience.wiley.com|
|Deposited On:||30 Apr 2008 00:00|
|Last Modified:||29 Feb 2012 13:50|
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