Determine the energy barrier to thermal electron transfer. The complex [( bipy) 2ClRu ( pyrazine) Ru(bipy)2Cl]5+ displays an inter valence transfer absorption band at 7.79 x103 cm-1. If Etherm can be very approximately equated to ΔG‡ for thermal electron transfer, estimate the rate constant. The thermal rate constant has been reported to be ≤ 3 x 1010 s-1