ABSTRACT
Zeolite A and faujasite molecular sieve materials are constructed with cationic transition metal complexes present in the synthesis gel. Conclusive evidence has not yet been obtained, but research data suggest that zeolite materials prepared by this technique trap the cationic metal complexes within the large framework cages from which the complex is too large to be removed by ion-exchange. The calcined form of these zeolite materials should contain catalytically active transition metals only in the interior of the molecular sieve. The presence of active metals only in the interior of the zeolite should maximize the molecular sieve effects of the oxide framework and create a shape selective catalyst.
