In this picosecond time-resolved study of zeolite hydroxyls we conclude from the O-D vibrational population lifetime that the protons in Y zeolite as well as in Mordenite are hydrogen bonded. In deuterated ZSM-5 no hydrogen-bonding was observed.

Elsevier B.V.
J. Weitkamp , H.G. Karge , H. Pfeifer

Bonn, M., Brugmans, M. J. P., Kleyn, A. W., van Santen, R. A., & Lagendijk, A. (1994). Time dependence of vibrational relaxation of deuterated hydroxyls in acidic zeolites. In J. Weitkamp, H. G. Karge, & H. Pfeifer (Eds.), Zeolites and Related Microporous Materials, State of Art 1994 : Proceedings of the 10th International Zeolite Conference, Garmi (pp. 493–500).