Calculated X-ray scattering functions for models for aqueous Ph4AsCl which fit the osmotic coefficient data |
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Authors: | Harold L. Friedman Donald M. Zebolsky Erika Kalman |
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Affiliation: | (1) Department of Chemistry, State University of New York at Stony Brook, 11794 Stony Brook, New York;(2) Present address: Department of Chemistry, Creighton University, 68178 Omaha, Nebraska;(3) Central Research Institute for Chemistry, Hungarian Academy of Sciences, 1088 Budapest, Hungary |
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Abstract: | Models for Ph4AsCl (aq.) which incorporate a Gurney cosphere overlap term are fitted to the published osmotic coefficient data. Models with predominantly + – and those with predominantly ++ ion pairing are about equally successful. Further calculations are then made to see how difficult it might be to distinguish between the models by scattering x rays, electrons, or neutrons from the aqueous solution in the rather low concentration range in which the models might be realistic. The x-ray experiment is promising, but high precision in the small-angle region would be necessary. |
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Keywords: | X-ray scattering osmotic coefficient tetraphenylarsonium chloride aqueous solutions Gurney cosphere cation-anion and cation-cation pairing |
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