Constituent units and framework conformations in zeolite networks

Abstract The building units of known zeolite networks have been reinvestigated and related to the framework density. Only a relatively small number of four-connected nets, which can be generated readily from observed constituent units, are “permissible” zeolite networks. Criteria for gauging the “permissibility” of zeolite-type networks in terms of geometrical constraints caused by conformational requirements have been investigated.

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