Solvent intermolecular polarizability response in solvation

Polarizability response spectroscopy (PORS) measurements were performed at a series of C153 concentrations in a variety of solvents. In contrast to the PORS signals from the neat solvents, it was found that the PORS signals from the solutions are primarily negative in amplitude with a long decay component. The long-time decay of the negative signal was fit with an exponential function. While the magnitude of the negative signals increased with concentration, the decay time only depended on the solvent.