Raman spectroscopic study of the metatellurate mineral : Xocomecatlite Cu3TeO4(OH)4

Frost, Ray L. and Keeffe, Eloise C. (2009) Raman spectroscopic study of the metatellurate mineral : Xocomecatlite Cu3TeO4(OH)4. Journal of Raman Spectroscopy, 40. pp. 866-869.

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DOI: 10.1002/jrs.2167

Official URL: http://www3.interscience.wiley.com/journal/3420/ho...

Abstract

The mineral xocomecatlite is a hydroxy metatellurate mineral with Te6+O4 units. Tellurates may be subdivided according to their formula into three types of tellurate minerals: type (a) (AB)m(TeO4)pZq, type (b) (AB)m(TeO6).xH2O and (c) compound tellurates in which a second anion including the tellurite anion, is involved. The mineral Xocomecatlite is an example of the first type. Raman bands for xocomecatlite at 710, 763 and 796 cm-1 and 600 and 680 cm-1 are attributed to the ν1 (TeO4)2- symmetric and ν3 antisymmetric stretching mode. Raman bands observed at 2867 and 2926 cm-1 are assigned to TeOH stretching vibrations and enable estimation of the hydrogen bond distances of 2.622 Å (2867 cm-1), 2.634 Å (2926 cm-1) involving these OH units. The hydrogen bond distances are very short implying that they are necessary for the stability of the mineral.

ID Code:	26871
Item Type:	Journal Article
Keywords:	tellurate, tellurite, xocomecatlite, kurankhite, tlapallite, Raman spectroscopy
ISSN:	0377-0486
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603) Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Physical Chemistry not elsewhere classified (030699) 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) > Catalysis and Mechanisms of Reactions (030601)
Divisions:	Schools > School of Physical and Chemical Sciences QUT Faculties and Divisions > Faculty of Science and Technology
Copyright Owner:	Copyright 2009 John Wiley & Sons
Deposited On:	19 Aug 2009 11:45
Last Modified:	20 Aug 2009 01:54

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