Potassium, rubidium, and cesium have been found to dissolve in 1,2-dimethoxyethane and some of its homologs to give blue, electrically conducting solutions. Although sodium alone is insoluble it is carried into solution by solvents already containing potassium. Approximate values for the solubilities and electrical conductivities are given at several temperatures. The optical absorption spectra for the region 300 mil to 2.5 .Il and the results of electron paramagnetic resonance studies are reported. Many features of these solutIOns clearly parallel those of the corresponding solutions of alkali metals in liquid ammonia or in amines. The properties of rubidium solutions are distinctly different from those of the other alkali metal solutions.

Cyclic voltammetry has been used to characterize the electrochemical behavior of iron phthalocyanine false(normalFePcfalse) films on glassy carbon electrodes in 0.05MH2SO4 solution. The films were found to catalyze oxygen reduction but deactivate on continuous cyclic scans. Films prepared by evaporation of a solution containing normalFePc and organic solvents, as well as by immersion in such a solution, showed significantly higher activity than those prepared by vapor deposition. This difference was attributed to the difference in the polymorphic forms of the normalFePc films. In situ laser Raman spectroscopy studies of this film indicated coordination of the normalFePc with water molecules in solution. The vibrational spectra, however, appear to be independent of potential in the region of 0.4 to −0.9V vs. normalHg/Hg2SO4 .

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