With time-resolved vibrational spectroscopy new information is obtained about the structural environment and vibrational dynamics of acidic hydroxyls in proton loaded zeolites. From O-H vibrational population lifetimes of zeolite Y we conclude that part of the protons are hydrogen bonded. Furthermore we find that the vibrational dynamics of the O-H oscillators are influenced by a resonant coupling mechanism.

Chem. Phys. Lett.

Brugmans, M. J. P., Kleyn, A. W., Lagendijk, A., Jacobs, W. P. J. H., & van Santen, R. A. (1994). Hydrogen bonding in acidic zeolites observed by time-resolved vibrational spectroscopy. Chem. Phys. Lett., 217, 117–122.