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A Photoswitchable and Photoluminescent Organic Semiconductor Based On Cation–π and Carboxylate–Pyridinium Interactions: A Supramolecular Approach

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  • We gratefully acknowledge financial support from DST and DST-FIST for the single-crystal X-ray facility. S.R. thanks IIT-KGP for a research fellowship. We thank Dr. T. K. Paine and B. Chakraborty of IACS for EPR measurements.

Abstract

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More than the sum of the parts: The property of a supramolecular material can differ significantly from those of the constituent materials. Two organic components, which are nonconductive, nonphotochromic, and nonluminescent, were shown to self-assemble by cation–π, π–π, and carboxylate–pyridinium interactions. An organic semiconductor is thus produced with significant charge mobility and photochromic and photoluminescence properties.

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