Vibrational spectroscopic study of the antimonate mineral bindheimite Pb2Sb2O6(O,OH)
Frost, Ray L. & Bahfenne, Silmarilly (2009) Vibrational spectroscopic study of the antimonate mineral bindheimite Pb2Sb2O6(O,OH). Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy, 74(1), pp. 100-103.
Raman spectroscopy complimented with infrared spectroscopy has been used to characterise the antimonate mineral bindheimite Pb2Sb2O6(O,OH). The mineral is characterised by an intense Raman band at 656 cm-1 assigned to SbO stretching vibrations. Other lower intensity bands at 664, 749 and 814 cm-1 are also assigned to stretching vibrations. This observation suggests the non-equivalence of SbO units in the structure. Low intensity Raman bands at 293, 312 and 328 cm-1 are assigned to the OSbO bending vibrations. Infrared bands at 979, 1008, 1037 and 1058 cm-1 may be assigned to δ OH deformation modes of SbOH units. Infrared bands at 1603 and 1640 cm-1 are assigned to water bending vibrations, suggesting that water is involved in the bindheimite structure. Broad infrared bands centred upon 3250 cm-1 supports this concept. Thus the true formula of bindheimite is questioned and probably should be written as Pb2Sb2O6(O,OH,H2O)
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|Item Type:||Journal Article|
|Additional Information:||This is the result of student Ms Silmarilly Bahfenne|
|Keywords:||antimonate, bindheimite, bahianite, Raman Spectroscopy, valentinite|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)|
|Divisions:||Past > Schools > Chemistry
Past > QUT Faculties & Divisions > Faculty of Science and Technology
|Copyright Owner:||Copyright 2009 Elsevier|
|Deposited On:||15 Jun 2011 22:16|
|Last Modified:||01 Mar 2012 00:41|
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