Über die Volumverhältnisse bei Kobaltiaken

Osmotic and activity coefficients of some cobaltammine salts

“…This behavior can be related with the contraction effect found when a NH3 is substituted by a H20 group in the coordination sphere. Previous works (29)(30)(31) have shown that the ionic size of an aquopentaamminecobatt(III) ion is smaller than that of an hexaamminecobatt(III) ion. This different ionic size is In agreement with the observed relative position of the experimental curves of the osmotic coefficients.…”