A vibrational spectroscopic study of the anhydrous phosphate mineral sidorenkite Na3Mn(PO4)(CO3).

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorFrost, Ray L.-
Autor(es): dc.creatorLópez, Andrés-
Autor(es): dc.creatorScholz, Ricardo Augusto-
Autor(es): dc.creatorBelotti, Fernanda Maria-
Autor(es): dc.creatorXi, Yunfei-
Data de aceite: dc.date.accessioned2019-11-06T13:35:53Z-
Data de disponibilização: dc.date.available2019-11-06T13:35:53Z-
Data de envio: dc.date.issued2016-01-14-
Data de envio: dc.date.issued2016-01-14-
Data de envio: dc.date.issued2015-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/6048-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/559024-
Descrição: dc.descriptionSidorenkite is a very rare low-temperature hydrothermal mineral, formed very late in the crystallization of hyperagpaitic pegmatites in a differentiated alkalic massif (Mt. Alluaiv, Kola Peninsula, Russia). Sidorenkite Na3Mn(PO4)(CO3) is a phosphate–carbonate of sodium and manganese. Such a formula with two oxyanions lends itself to vibrational spectroscopy. The sharp Raman band at 959 cm 1 and 1012 cm 1 are assigned to the PO43 stretching modes, whilst the Raman bands at 1044 cm 1 and 1074 cm 1 are attributed to the CO32 stretching modes. It is noted that no Raman bands at around 800 cm 1 for sidorenkite were observed. The infrared spectrum of sidorenkite shows a quite intense band at 868 cm 1 with other resolved component bands at 850 and 862 cm 1. These bands are ascribed to the CO32 out-of-plane bend (m2) bending mode. The series of Raman bands at 622, 635, 645 and 704 cm 1 are assigned to the m4 phosphate bending modes. The observation of multiple bands supports the concept of a reduction in symmetry of the carbonate anion from D3h or even C2v.-
Idioma: dc.languageen-
Direitos: dc.rightsO Periódico Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3727590123718-
Palavras-chave: dc.subjectSidorenkite-
Palavras-chave: dc.subjectPhosphate-
Palavras-chave: dc.subjectRaman spectroscopy-
Palavras-chave: dc.subjectInfrared spectroscopy-
Título: dc.titleA vibrational spectroscopic study of the anhydrous phosphate mineral sidorenkite Na3Mn(PO4)(CO3).-
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