Cover Picture: Expanding and Shrinking Porous Modulation Based on Pillared‐Layer Coordination Polymers Showing Selective Guest Adsorption (Angew. Chem. Int. Ed. 25/2004)

Abstract

To expand or shrink are properties of the new pillared‐layer porous coordination polymers shown in the cover picture. These features show that coordination polymers are much softer than generally believed. The adsorption selectivity exhibited by these new zeolite‐like materials arises from a simple change in the organic‐pillar module, and may find applications in molecular separation techniques. For more information see the Communication by S. Kitagawa et al. on page 3269 ff.