Raman spectroscopy of selected borate minerals of the pinakiolite group

Frost, Ray L. (2011) Raman spectroscopy of selected borate minerals of the pinakiolite group. Journal of Raman Spectroscopy, 42(3), pp. 540-543.

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The Raman spectra of a series of related minerals of the pinakiolite group of minerals have been collected and the spectra related to the mineral structure. These minerals are based upon an isolated BO33- ion. The site symmetry is reduced from D3h to C1. Intense Raman bands are observed for the minerals takeuchiite, pinakiolite, fredrikssonite and azoproite at 1084, 1086, 1086 and 1086 cm-1. These bands are assigned to the ν1 BO33- symmetric stretching mode. Low intensity Raman bands are observed for the minerals at 1345, 1748; 1435, 1748; 1435, 1750; 1436, 1749 cm-1. One probable assignment is to ν3 BO33- antisymmetric stretching mode. Intense Raman bands of takeuchiite, pinakiolite, fredrikssonite and azoproite at 712 cm-1 attributed to the ν2 out-of-plane bending mode. Importantly, through the comparison of the Raman spectra, the molecular structure of borate minerals with ill-defined structures can be obtained.

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ID Code: 40845
Item Type: Journal Article
Refereed: Yes
Keywords: Raman spectroscopy, borate, takeuchiite, pinakiolite, fredrikssonite azoproite
DOI: 10.1002/jrs.2745
ISSN: 0377-0486
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 2011 John Wiley & Sons
Deposited On: 21 Mar 2011 22:28
Last Modified: 31 Mar 2012 14:10

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