Figure 9.

IR spectral changes of a CH3CN solution of 26– recorded in an OTTLE cell during the progressive sweep of the potential from −0.3 to −1.8 V vs the Ag pseudoreference electrode (scan rate of 1 mV s–1). [NBu4][PF6] (0.1 mol dm–3) as the supporting electrolyte. The absorptions of the solvent and the supporting electrolyte have been subtracted.