A vibrational spectroscopic study of tengerite-(Y) Y2(CO3)3 2-3H2O

Ray L Frost; Andrés López; Lina Wang; Ricardo Scholz; Ney Pinheiro Sampaio; Fernando A N de Oliveira

doi:10.1016/j.saa.2014.08.107

A vibrational spectroscopic study of tengerite-(Y) Y2(CO3)3 2-3H2O

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Feb 25:137:612-6. doi: 10.1016/j.saa.2014.08.107. Epub 2014 Sep 16.

Authors

Ray L Frost¹, Andrés López², Lina Wang³, Ricardo Scholz⁴, Ney Pinheiro Sampaio⁵, Fernando A N de Oliveira⁶

Affiliations

¹ School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia. Electronic address: r.frost@qut.edu.au.
² School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia.
³ School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia; School of Chemistry and Chemical Engineering, Tianjin University of Technology, No. 391, Bin Shui West Road, Xi Qing District, Tianjin, PR China.
⁴ Geology Department, School of Mines, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35,400-00, Brazil.
⁵ NanoLab, REDEMAT, School of Mines, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35,400-00, Brazil.
⁶ Federal Institute of Minas Gerais, Campus Ouro Preto, Ouro Preto, MG 35,400-000, Brazil.

PMID: 25244294
DOI: 10.1016/j.saa.2014.08.107

Abstract

The mineral tengerite-(Y) has been studied by vibrational spectroscopy. Multiple carbonate stretching modes are observed and support the concept of non-equivalent carbonate units in the tengerite-(Y) structure. Intense sharp bands at 464, 479 and 508 cm(-1) are assigned to YO stretching modes. Raman bands at 765 and 775 cm(-1) are assigned to the CO3(2-) ν4 bending modes and Raman bands at 589, 611, 674 and 689 cm(-1) are assigned to the CO3(2-) ν2 bending modes. Multiple Raman and infrared bands in the OH stretching region are observed, proving the existence of water in different molecular environments in the structure of tengerite-(Y).

Keywords: Carbonate; Hydroxyl; Infrared and Raman spectroscopy; Tengerite-(Y).

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Carbonates / chemistry
Microscopy, Electron, Scanning
Minerals / analysis
Minerals / chemistry*
Spectrophotometry, Infrared
Spectrum Analysis, Raman
Vibration

Substances

Carbonates
Minerals