Electrochemical investigations into the nature of 3 looked into the reduction from Al(III) to Al(II). Initially this was shown as irreversible when scanning the whole potential window (i.e., 0 V to -4.0 V vs. Ag), however, if only considering the first reduction window (i.e., -1.0 V to -1.8 V vs. Ag) reversibility can be achieved at higher scan rates (Figure ). This suggests an electrochemicalchemical reaction (EC) exists in this system. In an EC reaction mechanism, the effect of chemical reaction depends on k/ν (rate of the chemical reaction/scan rate). If this ratio is large, the chemical reaction will have a significant effect on the reversibility of the system. Simply by increasing the scan rate, it is possible to force the electrochemical reaction to occur at a faster rate than the chemical reaction, allowing a level of reversibility to be observed. Since we could isolate the Al(II) intermediate 3, we were able to use it as a starting point within the electrochemical investigations to examine the Al(II) to Al(I) process. Keeping the potential window between -1.8 V to -2.8 V vs. Ag, resulted in the observation of a reversible redox process (Figure ).