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.

Amsterdam: Elsevier
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). Amsterdam: Elsevier.