Infrared and Raman spectroscopic characterization of the arsenate mineral ceruleite Cu2Al7(AsO4)4(OH)13 11.5(H2O).

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dc.contributor.authorFrost, Ray Leslie
dc.contributor.authorLópez, Andrés
dc.contributor.authorCipriano, Ricardo Augusto Scholz
dc.contributor.authorXi, Yunfei
dc.date.accessioned2014-12-14T12:44:07Z
dc.date.available2014-12-14T12:44:07Z
dc.date.issued2013
dc.description.abstractThe molecular structure of the arsenate mineral ceruleite has been assessed using a combination of Raman and infrared spectroscopy. The most intense band observed at 903 cm^-1 is assigned to the (AsO4)^3- symmetric stretching vibrational mode. The infrared spectrum shows intense bands at 787, 827 and 886 cm^-1, ascribed to the triply degenerate m3 antisymmetric stretching vibration. Raman bands observed at 373, 400, 417 and 430 cm^-1 are attributed to the m2 vibrational mode. Three broad bands for ceruleite found at 3056, 3198 and 3384 cm^-1 are assigned to water OH stretching bands. By using a Libowitzky empirical equation, hydrogen bond distances of 2.65 and 2.75 Å are calculated. Vibrational spectra enable the molecular structure of the ceruleite mineral to be determined and whilst similarities exist in the spectral patterns with the roselite mineral group, sufficient differences exist to be able to determine the identification of the minerals.pt_BR
dc.identifier.citationFROST, R. L. et al. Infrared and Raman spectroscopic characterization of the arsenate mineral ceruleite Cu2Al7(AsO4)4(OH)13 11.5(H2O). Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 116, p. 518-523, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142513008512>. Acesso em: 07 out. 2014.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.saa.2013.07.103
dc.identifier.issn1386-1425
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/4160
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3487241460181.pt_BR
dc.subjectCeruleitept_BR
dc.subjectArsenatept_BR
dc.subjectRoselitept_BR
dc.subjectRaman spectroscopypt_BR
dc.subjectInfrared spectroscopypt_BR
dc.titleInfrared and Raman spectroscopic characterization of the arsenate mineral ceruleite Cu2Al7(AsO4)4(OH)13 11.5(H2O).pt_BR
dc.typeArtigo publicado em periodicopt_BR
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