Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Inside Cover: Stimuli-Responsive Self-Assembly of a Naphthalene Diimide by Orthogonal Hydrogen Bonding and Its Coassembly with a Pyrene Derivative by a Pseudo-Intramolecular Charge-Transfer Interaction (Angew. Chem. Int. Ed. 4/2014)
A trap is set when hydrogen bonding between a supramolecular polymer with a pendant acceptor (A) and a pyrene donor (D) produces a transient supramolecular donor–acceptor complex. As A. Das and S. Ghosh show in their Communication on page 1092 ff., a charge-transfer interaction between the donor and acceptor then causes this complex to undergo back folding, transforming it into an alternate D–A stack, engulfing the pyrene donors like flies in a Venus fly trap.