Electrochemical parameterization of 1,1′-disubstituted cobaltocenium compounds

•Electrochemistry of 1,1′-disubstituted cobaltocenium compounds was examined.•X-ray structures of two new 1,1′-disubstituted cobaltocenium compounds.•Correlation of redox potentials of cobaltocenium compounds with ferrocene analogs.

Two new 1,1′-disubstituted cobaltocenium compounds, [(C5H4CHEt2)2Co][PF6] and [(C5H4SiMe3)2Co][PF6], were synthesized and the X-ray crystal structures were determined. The electrochemistry of seven 1,1′-disubstituted cobaltocenium compounds and the analogous ferrocene compounds was studied in methylene chloride using cyclic voltammetry. The affect of the various substituents on the redox potentials of these compounds was examined and trends in the electrochemical data were explored.

Graphical abstractElectrochemical data for 1,1′-disubstituted cobaltocenium compounds were parameterized and compared to analogous ferrocene compounds. The X-ray crystal structures of two new 1,1′-disubstituted cobaltocenium compounds were determined.Figure optionsDownload full-size imageDownload as PowerPoint slide