Structure of synthetic zeolite ZSM-5

ZEOLITE ZSM-5 (ref. 1) is a member of a new class of shape selective catalysts with unique channel structures which differ from the familiar large-pore faujasite and small-pore zeolites such as Linde Type A and erionite. They also possess unusual catalytic properties and have high thermal stability. We have determined their structure using model building, single crystal and powder X-ray data.