title: Infrared and polarized Raman spectra of a noncentrosymmetric compound "sodium samarium fluorosilicate" NaSmSiO4.0.25NaF.
abstract: Chemical preparation, infrared and Raman spectra of sodium samarium fluorosilicate, NaSmSiO(4).0.25NaF are presented. The spectra are analyzed with regard to the symmetry, and the numbers of the SiO(4)(4-) internal vibrational modes observed in the Raman and infrared spectra are consistent with the predictions.
authors.affiliation: Laboratoire de Chimie Inorganique et Structurale, Faculté des Sciences de Bizerte, 7021 Jarzouna, Tunisia.
authors.forename: A
authors.initials: A
authors.lastname: Dakhlaoui
authors.forename: M
authors.initials: M
authors.lastname: Toumi
authors.forename: L S
authors.initials: LS
authors.lastname: Smiri
authors.forename: A
authors.initials: A
authors.lastname: Bulou
mesh_terms: D007536:Isomerism; D017640:Silicates / Q000138:chemical synthesis / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013059:Spectrum Analysis, Raman; D014732:Vibration
chemical_list: D017640:Silicates; C500445:sodium samarium fluorosilicate