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Para‐Phenylenringe in porösen aromatischen Netzwerken “flimmern” und erinnern dabei an Schmetterlinge, die mit ihren Flügeln schlagen. In ihrer Zuschrift auf S. 1061 ff. demonstrieren P. Sozzani et al., dass diese robusten, kovalenten Architekturen mit niedriger Dichte eine sehr schnelle Rotation der Phenylenringe aufrechterhalten können.
Porous organic frameworks perform a variety of functions, owing to their extremely large surface areas, but the dynamics of the structural elements have never been explored. Our discovery of ultra‐fast molecular rotors (106 Hz at 225 K) in their architectures allows us to look at them from a new perspective. The constructive elements are robust struts and rapid rotors, resulting in a dynamic material...
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