
%0 Journal Article
%A Lawrance, GA 
%A Stranks, DR 
%A Sullivan, TR 
%T Pressure-dependent aquation of the Tris(2,2'-bipyridyl)iron(II) cation
%J Australian Journal of Chemistry
%D 1981/08/01
%V 34
%N 8
%P 1763-1768
%K 
%R https://doi.org/10.1071/CH9811763
%U https://www.publish.csiro.au/paper/CH9811763 
%X The aquation of Fe(bpy)32+ (bpy = 2,2'-bipyridyl) was studied in aqueous hydrochloric acid at a range of pressures between 1 and 2070 bar. Activation volumes (&#916;V&#8225;) in 1.0 M HCl (+ 12.3 cm3 mol-1), 0.01 M HCl (+14.8cm3 mol-1), 1.0 M DCl (+13.3 cm3 mol-1) and 0.01 M DCl (+16.3 cm3 mol-1) were determined. A mechanism involving a significant positive contribution to &#916;V&#8225; arising from a low-spin &#8596; high-spin preequilibrium is proposed. The minor effect of the deuterium solvent isotope on &#916;V&#8225; is consistent with this proposal. 
