Accession Number : ADA116560

Title :   Molecular Relaxation of Lithium Arsenic Hexafluoride in One-Two-Dimethoxyethane.

Descriptive Note : Technical rept.,

Corporate Author : POLYTECHNIC INST OF NEW YORK FARMINGDALE DEPT OF CHEMISTRY

Personal Author(s) : Farber,Herman ; Irish,Donald ; Petrucci,Sergio

PDF Url : ADA116560

Report Date : 30 Jun 1982

Pagination or Media Count : 27

Abstract : Audiofrequency electrical conductivity, Raman Spectra, radiofrequency ultrasonic absorption and microwave dielectric permittivity of LiAsF6 in the solvent 1-2 Dimethoxyethane (DME) are reported. Electrical conductivity reveal the electrolyte to be associated to ion-pairs (KA equals 1x10 to the fifth power M to the -one). Raman Spectra of the symmetrical stretching mode of AsF6 suggest the ion to be 'spectroscopically free', namely either unpaired or solvent separated from the cation. Ultrasonic relaxation data are interpreted as due to the equilibrium Li(+), S, negative ion AsF negative reversible(negative ion to a positive Ion) 6 LiAsF6, S being a solvent molecule. The equilibrium appears to be heavily shifted toward the left, in accord with the information by Raman Spectra. (Author)

Descriptors :   *Molecular structure, *Relaxation, *Lithium fluorides, *Arsenic compounds, Molecular rotation, Raman spectroscopy, One dimensional, Two dimensional, Electrical conductivity, Ultrasonic tests, Microwaves, Dielectrics, Electrolytes, Ions

Subject Categories : Organic Chemistry
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE