
%0 Journal Article
%A Diggle, JW 
%A Parker, AJ 
%A Owensby, DA 
%T Voltammetric investigation of the kinetics of alkali metal cation reduction in N,N-dimethylformamide
%J Australian Journal of Chemistry
%D 1975/02/01
%V 28
%N 2
%P 237-241
%K 
%R https://doi.org/10.1071/CH9750237
%U https://www.publish.csiro.au/paper/CH9750237 
%X The standard electron-transfer heterogeneous rate constant of lithium, potassium, sodium and caesium amalgams in N,N-dimethylformamide was ascertained employing cyclic voltammetry in an effort to relate the presence of a non-equilibrium electrode reaction at the dropping lithium amalgam electrode to the variation of the lithium amalgam electrode potential with amalgam electrode con- figuration, i.e. whether streaming, dropping or stationary. Such variations are not observed at other alkali metal amalgam electrodes.     In the dipolar aprotic solvents the standard electron-transfer heterogeneous rate constant for the Li(Hg) electrode increases as the solvating power for Li+ decreases, i.e. dimethyl sulphoxide < di- methylformamide < propylene carbonate. Water is a much stronger solvator of Li+ than is propylene carbonate, but the electron transfer is faster in water than in propylene carbonate; the important role of entropic contributions in ion solvation is discussed as an explanation. 
