title: Vibrational study of [(CH3)4N]2Cu0.5Zn0.5Cl4.
abstract: [(CH3)4N]2Zn0.5Cu0.5Cl4 shows an orthorhombic system at ambient temperature with P2(1)nb space group. At room temperature, the crystal consists of three sublattices constituted by MCl4 (M=Cu and Zn) and two tetramethylammoniums N1(CH3)4 and N2(CH3)4, which give rise to a total of 372 vibrational modes that transform according to the four irreductible representations of the C2v point group in the following way: Gamma(vib)=93(A1+A2+B1+B2). The infrared and Raman spectra of polycrystalline samples have been investigated at room temperature. The assignment of the observed bands is discussed.
authors.affiliation: Laboratoire de l'état solide, Faculté des Sciences de Sfax, B.P. 802, 3038 Sfax, Tunisia. Arhaim@yahoo.fr
authors.forename: A
authors.initials: A
authors.lastname: Ben Rhaiem
authors.forename: F
authors.initials: F
authors.lastname: Hlel
authors.forename: K
authors.initials: K
authors.lastname: Guidara
authors.forename: M
authors.initials: M
authors.lastname: Gargouri
mesh_terms: D002712:Chlorides / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013059:Spectrum Analysis, Raman; D013696:Temperature; D014732:Vibration; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D002712:Chlorides; D000644:Quaternary Ammonium Compounds; D003300:Copper; D015034:Zinc Oxide; C030973:cupric oxide