Influence of the organic cation on the total electrical conductivity in silver iodide based systems—II. Statistical determination of the ideal cationic volume of substituted onium cations
✍ Scribed by Joseph J. Rosenberg
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 244 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0013-4686
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✦ Synopsis
Owens' rules (modified or not) do not permit determination of the ideal ionic radius (or the volume) of the substituted onium cation of the organo-mineral systems based on silver iodide. To approach the fictitious cationic volume of the substituted onium we propose a statistical study deduced from the results of the total electrical conductivity (T.E.C.) as the function of the ratio of carbons:onium(s) of these double salts. At room temperature, for the solid state ionics having a T.E.C. higher than 1O-4 ohm-' cm-', the ideal cationic volume is 62.8 A' (ie it would correspond to the triethylmethyl ammonium cation ; for the double salts having a T.E.C. higher than lo-? ohm-' cm-' the fictitious cationic volume is 57 A 3 (ie it would correspond to the diethyldimethyl ammonium cation).