title: A vibrational spectroscopic study of tengerite-(Y) Y2(CO3)3 2-3H2O.
abstract: The mineral tengerite-(Y) has been studied by vibrational spectroscopy. Multiple carbonate stretching modes are observed and support the concept of non-equivalent carbonate units in the tengerite-(Y) structure. Intense sharp bands at 464, 479 and 508 cm(-1) are assigned to YO stretching modes. Raman bands at 765 and 775 cm(-1) are assigned to the CO3(2-) ν4 bending modes and Raman bands at 589, 611, 674 and 689 cm(-1) are assigned to the CO3(2-) ν2 bending modes. Multiple Raman and infrared bands in the OH stretching region are observed, proving the existence of water in different molecular environments in the structure of tengerite-(Y).
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia. Electronic address: r.frost@qut.edu.au.
authors.forename: Ray L
authors.initials: RL
authors.lastname: Frost
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia.
authors.forename: Andrés
authors.initials: A
authors.lastname: López
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia; School of Chemistry and Chemical Engineering, Tianjin University of Technology, No. 391, Bin Shui West Road, Xi Qing District, Tianjin, PR China.
authors.forename: Lina
authors.initials: L
authors.lastname: Wang
authors.affiliation: Geology Department, School of Mines, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35,400-00, Brazil.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Scholz
authors.affiliation: NanoLab, REDEMAT, School of Mines, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35,400-00, Brazil.
authors.forename: Ney Pinheiro
authors.initials: NP
authors.lastname: Sampaio
authors.affiliation: Federal Institute of Minas Gerais, Campus Ouro Preto, Ouro Preto, MG 35,400-000, Brazil.
authors.forename: Fernando A N
authors.initials: FA
authors.lastname: de Oliveira
mesh_terms: D002254:Carbonates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D008903:Minerals / Q000032:analysis / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013059:Spectrum Analysis, Raman; D014732:Vibration
chemical_list: D002254:Carbonates; D008903:Minerals
keywords: Carbonate; Hydroxyl; Infrared and Raman spectroscopy; Tengerite-(Y)