We classify two types of chromophore-solvent interactions between CV + and methanol. The first is where the amine groups of CV + act as H-bond donors, forming four peripheral H-bonds with the oxygen of methanol solvent molecules. The second is for the methanol solvent molecules interacting with the π-system of CV + above and below the axial region of the plane of the chromophore, see Figure . These chromophore-solvent interactions lead to two different kinds of hydrogen bonds that we discuss herein, (1) peripheral H-bonds and ( ) axial H-bonds where the axial methanol molecules donate their OH group to the amine group of CV + , where now CV + acts as an H-bond acceptor. We generously define a hydrogen bond as forming if the donor-acceptor distance between heavy atoms is within 3.2 Å of each other, the distance between the hydrogen and its accepting heavy atom is within 2.2 Å of each other, and the donor-hydrogen-acceptor angle is greater than or equal to 110 degrees.