Vibrational spectroscopic characterization of the phosphate mineral althausite Mg2(PO4)(OH,F,O) - implications for the molecular structure.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorFrost, Ray Leslie-
Autor(es): dc.creatorLópez, Andrés-
Autor(es): dc.creatorXi, Yunfei-
Autor(es): dc.creatorCipriano, Ricardo Augusto Scholz-
Data de aceite: dc.date.accessioned2025-08-21T15:53:58Z-
Data de disponibilização: dc.date.available2025-08-21T15:53:58Z-
Data de envio: dc.date.issued2015-02-27-
Data de envio: dc.date.issued2015-02-27-
Data de envio: dc.date.issued2014-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/4515-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.saa.2013.10.018-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1026917-
Descrição: dc.descriptionNatural 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.-
Formato: dc.formatapplication/pdf-
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 3487790248684.-
Palavras-chave: dc.subjectAlthausite-
Palavras-chave: dc.subjectPhosphate-
Palavras-chave: dc.subjectRaman-
Palavras-chave: dc.subjectInfrared-
Palavras-chave: dc.subjectPegmatite-
Título: dc.titleVibrational spectroscopic characterization of the phosphate mineral althausite Mg2(PO4)(OH,F,O) - implications for the molecular structure.-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.