Solid-state 1H n.m.r. studies of the structure of the active site in zeolite H-ZSM-5

Abstract

Solid-state ¹H n.m.r. shows that the mean distance between acidic protons in bridging hydroxyl groups and the nearest framework Al atom in zeolite H-ZSM-5 is 2.48 ± 0.04 Å.