Porous crystals: A perspective

Abstract

Crystals porous on the scale of molecules are found among aluminosilicates, crystalline silicas, aluminophosphates, expanded clay minerals, clathrates and metallocyanates. Properties shared by all types are host crystal stabilisation by guest molecules; and diape-selective uptake of guest. Zeolites, expanded clay minerals, and porous aluminophosphates part substituted by Si or by metals, have catalytic properties, while zeolites and clay minerals share cation exchange properties. Some of these properties are illustrated and discussed. © 1986 IUPAC