Angewandte Chemie International Edition

Cover image for Vol. 55 Issue 36

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPlusChem, Zeitschrift für Chemie

53_04b/2014Back Cover: Molecular Rotors in Porous Organic Frameworks (Angew. Chem. Int. Ed. 4/2014)

Para-phenylene rings in porous aromatic frameworks rapidly flicker, resembling butterflies that flap their wings. In their Communication on page 1043 ff., P. Sozzani et al. demonstrate that these low-density, yet robust covalent architectures can sustain extremely rapid rotational motion of the phenylene rings.

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