EXERCISE $1\mathrm{.}2$: The molar absorptivities for all three peaks exhibited by DPK in Figure $1\mathrm{.}2$ have been determined in this chapter. What conjectures can you make about the transitions that give rise to those peaks?

Figure $1\mathrm{.}2$ Ultraviolet$-$visible spectrum of DPK $($structure inset$)$ in dry acetonitrile. The concentration of DPK is $0\mathrm{.}0828mM(A)$ and $4\mathrm{.}17mM(B).$ The cell path length was $1\mathrm{.}0cm.$