Abstract
Conductivity data are reported for solutions of [Co(NH3)5NO2]SO4 in water and aqueous dioxane. Ion-pair association constants calculated from the data range from 3.8×102 in water to 4.1×104 in 37% dioxane. A plot of logK A vs. 1/D is linear with a slope considerably greater than that for simple 2:2 salts. A major factor contributing to enhanced association appears to be ion-dipole interaction. The dipole moment of the complex cation is estimated to be in the vicinity of 6 debye units.
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Masterton, W.L., Bierly, T. Ion association in 2:2 complex ion electrolytes: [Co(NH3)5NO2]SO4 in water-dioxane mixtures. J Solution Chem 5, 721–731 (1976). https://doi.org/10.1007/BF00643456
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DOI: https://doi.org/10.1007/BF00643456