title: The infrared and Raman spectra of ethylammonium hexafluorosilicate [C2H5NH3]2SiF6.
abstract: The X-rays powder diffraction pattern of [C2H5NH3]2SiF6 was obtained and indexed on the basis of a hexagonal unit cell. The vibrational spectra (IR and Raman) of this compound were recorded and discussed in relation to the above-mentioned crystal structure. The vibrational spectra of the cations indicate that they are disordered and hydrogen bonded to the anions. On the opposite, the Raman spectrum of the anions could be interpreted in terms of ordered groups. The combination bands observed in the 2300-1800 cm(-1) spectral region in the IR spectrum indicate that this compound may contain C-NH3 groups.
authors.affiliation: Laboratoire de Physico-Chimie des Matériaux Inorganiques, Faculté des Sciences, Kenitra, Morocco.
authors.forename: Ali
authors.initials: A
authors.lastname: Ouasri
authors.forename: Ali
authors.initials: A
authors.lastname: Rhandour
authors.forename: Marie-Claire
authors.initials: MC
authors.lastname: Dhamelincourt
authors.forename: Paul
authors.initials: P
authors.lastname: Dhamelincourt
authors.forename: Ahmed
authors.initials: A
authors.lastname: Mazzah
mesh_terms: D000838:Anions; D002412:Cations; D005461:Fluorine / Q000737:chemistry; D006860:Hydrogen Bonding; D008958:Models, Molecular; D015233:Models, Statistical; D000644:Quaternary Ammonium Compounds / Q000032:analysis* / Q000737:chemistry*; D017640:Silicates / Q000032:analysis* / Q000737:chemistry*; D012825:Silicon / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D014961:X-Ray Diffraction
chemical_list: D000838:Anions; D002412:Cations; D000644:Quaternary Ammonium Compounds; D017640:Silicates; C475678:ethylammonium hexafluorosilicate; D005461:Fluorine; D012825:Silicon