A vibrational spectroscopic study of the phosphate mineral vantasselite Al4(PO4)3(OH)3 9H2O.

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dc.contributor.authorFrost, Ray Leslie
dc.contributor.authorCipriano, Ricardo Augusto Scholz
dc.contributor.authorBelotti, Fernanda Maria
dc.contributor.authorLópez, Andrés
dc.contributor.authorTheiss, Frederick L.
dc.date.accessioned2016-01-15T16:36:03Z
dc.date.available2016-01-15T16:36:03Z
dc.date.issued2015
dc.description.abstractWe have studied the phosphate mineral vantasselite Al4(PO4)3(OH)3 9H2O using a combination of SEM with EDX and Raman and infrared spectroscopy. Qualitative chemical analysis shows Al, Fe and P. Raman bands at 1013 and 1027 cm 1 are assigned to the PO43 m1 symmetric stretching mode. The observation of two bands suggests the non-equivalence of the phosphate units in the vantasselite structure. Raman bands at 1051, 1076 and 1090 cm 1 are attributed to the PO43 m3 antisymmetric stretching vibration. A comparison is made with the spectroscopy of wardite. Strong infrared bands at 1044, 1078, 1092, 1112, 1133, 1180 and 1210 cm 1 are attributed to the PO4 3 m3 antisymmetric stretching mode. Some of these bands may be due to dAl2OH deformation modes. Vibrational spectroscopy offers a mechanism for the study of the molecular structure of vantasselite.pt_BR
dc.identifier.citationFROST, R, L. et al. A vibrational spectroscopic study of the phosphate mineral vantasselite Al4(PO4)3(OH)3 9H2O. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 147, p. 185-192, 2015. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142515004059>. Acesso em: 08 set. 2015.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.saa.2015.03.090
dc.identifier.issn1386-1425
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/6073
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: 3727590061502.pt_BR
dc.subjectVantasselitept_BR
dc.subjectPhosphatept_BR
dc.subjectRaman spectroscopypt_BR
dc.subjectInfrared spectroscopypt_BR
dc.titleA vibrational spectroscopic study of the phosphate mineral vantasselite Al4(PO4)3(OH)3 9H2O.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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