Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/3948
Title: A vibrational spectroscopic study of the silicate mineral plumbophyllite Pb2Si4O10.H2O.
Authors: Frost, Ray Leslie
López, Andrés
Xi, Yunfei
Cipriano, Ricardo Augusto Scholz
Lana, Cristiano de Carvalho
Keywords: Plumbophyllite
Silicate
Apophyllite
Pentagonite
Spectroscopy
Issue Date: 2014
Citation: FROST, R. L. et al. A vibrational spectroscopic study of the silicate mineral plumbophyllite Pb2Si4O10.H2O. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 128, p. 665-670, 2014. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142514003801>. Acesso em: 04 set. 2014.
Abstract: Raman spectroscopy complimented with infrared spectroscopy has been used to study the molecular structure of the mineral of plumbophyllite. The Raman spectrum is dominated by a very intense sharp peak at 1027 cm^-1, assigned to the SiO stretching vibrations of (SiO3)n units. A very intense Raman band at 643 cm^-1 is assigned to the bending mode of (SiO3)n units. Raman bands observed at 3215, 3443, 3470, 3494 and 3567 cm^-1 are assigned to water stretching vibrations. Multiple water stretching and bending modes are observed showing that there is much variation in hydrogen bonding between water and the silicate surfaces. Because of the close similarity in the structure of plumbophyllite and apophyllite, a comparison of the spectra with that of apophyllites is made. By using vibrational spectroscopy an assessment of the molecular structure of plumbophyllite has been made.
URI: http://www.repositorio.ufop.br/handle/123456789/3948
metadata.dc.identifier.doi: https://doi.org/10.1016/j.saa.2014.02.181
ISSN: 1386-1425
metadata.dc.rights.license: O periódico Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3466020920776.
Appears in Collections:DEGEO - Artigos de periódicos

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