Northwestern University

Chi-Hau Sue

Samuel I Stupp

J Fraser Stoddart

Alok S Tayi

Ashwin Narayanan

Alexander K Shveyd

Organic charge-transfer (CT) co-crystals in a mixed stack system are disclosed, wherein a donor molecule (D) and an acceptor molecule (A) occupy alternating positions (DADADA) along the CT axis. A platform is provided which amplifies the molecular recognition of donors and acceptors and produces co-crystals at ambient conditions, wherein the platform comprises (i) a molecular design of the first constituent (&#x3b1;-complement), (ii) a molecular design of the second compound (&#x3b2;-complement), and (iii) a solvent system that promotes co-crystallization.

Modular supramolecular approach for co-crystallization of donors and acceptors into ordered networks

Organic charge-transfer (CT) co-crystals in a crossed stack system are disclosed. The co-crystals exhibit bidirectional charge transfer interactions where one donor molecule shares electrons with two different acceptors, one acceptor face-to-face and the other edge-to-face. The assembly and charge transfer interaction results in a pleochroic material whereby the optical absorption continuously changes depending on the polarization angle of incident light.

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Berkeley, CA, United States of America

Chi-Hau Sue