Čejka, JiřiSejkora, JiřiCipriano, Ricardo Augusto ScholzLópez, AndrésXi, YunfeiFrost, Ray Leslie2014-12-172014-12-172014FROST, R. L. et al. Raman and infrared spectroscopic studies of phurcalite from Red Canyon, Utah, U.S.A. - implications for the molecular structure. Journal of Molecular Structure, v. 1068, p. 14-19, 2014. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0022286014003081>. Acesso em: 07 out. 2014.0022-2860http://www.repositorio.ufop.br/handle/123456789/4193Raman and infrared spectra of the uranyl mineral phurcalite, Ca2(UO2)3O2(PO4)2_7H2O, from Red Canyon, Utah, USA, were studied and tentatively interpreted. Observed bands were assigned to the stretching and bending vibrations of (UO2)2+ and (PO4)3_ units and to the stretching and bending vibrations and libration modes of water molecules. Approximate lengths of U–O in (UO2)2+ and O–H_ _ _O hydrogen bond lengths were inferred from observed stretching vibrations. The presence of structurally nonequivalent U6+ and P5+ was inferred from the number of corresponding stretching bands of (UO2)2+ and (PO4)3_ units observed in the Raman and infrared spectra.en-USPhurcaliteMineralSpectroscopyArtigo publicado em periodicoO periódico Journal of Molecular Structure concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença 3487791277390.https://doi.org/10.1016/j.molstruc.2014.03.040