Cloverite zeolites large pore zeolite molecular sieves

The available intrazeolitic space should be sufficient to accomodate a complex with a diameter of approximately 1.5 nm. This seems possible in faujasite type zeolites as weli as in very large pore AlPO -n molecular sieves or substituted anaiogs. VPI-5 is a candidate (23). For AIPO4-8 molecular graphics analysis predicts - as is confirmed by synthesis attempts - that accomodation of the complex for sterical reasons in this molecular sieve is impossible. The Cloverite material, the structure of which has been described elsewhere in this volume, also is a potentiai support. 

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