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Campo Dublin Core | Valor | Idioma |
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dc.contributor.author | Frost, Ray Leslie | - |
dc.contributor.author | López, Andrés | - |
dc.contributor.author | Xi, Yunfei | - |
dc.contributor.author | Cipriano, Ricardo Augusto Scholz | - |
dc.date.accessioned | 2015-02-27T18:26:07Z | - |
dc.date.available | 2015-02-27T18:26:07Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | FROST, R. L. et al. Vibrational spectroscopic characterization of the phosphate mineral althausite Mg2(PO4)(OH,F,O) - implications for the molecular structure. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 120, p. 252-256, 2014. Disponível em: <http://www.sciencedirect.com/science/article/pii/S138614251301175X>. Acesso em: 07 out. 2014. | pt_BR |
dc.identifier.issn | 1386-1425 | - |
dc.identifier.uri | http://www.repositorio.ufop.br/handle/123456789/4515 | - |
dc.description.abstract | Natural single-crystal specimens of althausite from Brazil, with general formula Mg2(PO4)(OH,F,O) were investigated by Raman and infrared spectroscopy. The mineral occurs as a secondary product in granitic pegmatites. The Raman spectrum of althausite is characterized by bands at 1020, 1033 and 1044 cm_1, assigned to m1 symmetric stretching modes of the HOPO3_ 3 and PO3_ 4 units. Raman bands at around 1067, 1083 and 1138 cm_1 are attributed to both the HOP and PO antisymmetric stretching vibrations. The set of Raman bands observed at 575, 589 and 606 cm_1 are assigned to the m4 out of plane bending modes of the PO4 and H2PO4 units. Raman bands at 439, 461, 475 and 503 cm_1 are attributed to the m2 PO4 and H2PO4 bending modes. Strong Raman bands observed at 312, 346 cm_1 with shoulder bands at 361, 381 and 398 cm_1 are assigned to MgO stretching vibrations. No bands which are attributable to water were found. Vibrational spectroscopy enables aspects of the molecular structure of althausite to be assessed. | pt_BR |
dc.language.iso | en_US | pt_BR |
dc.subject | Althausite | pt_BR |
dc.subject | Phosphate | pt_BR |
dc.subject | Raman | pt_BR |
dc.subject | Infrared | pt_BR |
dc.subject | Pegmatite | pt_BR |
dc.title | Vibrational spectroscopic characterization of the phosphate mineral althausite Mg2(PO4)(OH,F,O) - implications for the molecular structure. | pt_BR |
dc.type | Artigo publicado em periodico | pt_BR |
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 3487790248684. | pt_BR |
dc.identifier.doi | https://doi.org/10.1016/j.saa.2013.10.018 | - |
Aparece nas coleções: | DEGEO - Artigos publicados em periódicos |
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