3 years ago

Visualization of Stereoselective Supramolecular Polymers by Chirality-Controlled Energy Transfer

Visualization of Stereoselective Supramolecular Polymers by Chirality-Controlled Energy Transfer
Shikha Dhiman, Aritra Sarkar, Aditya Chalishazar, Subi J. George
Chirality-driven self-sorting is envisaged to efficiently control functional properties in supramolecular materials. However, the challenge arises because of a lack of analytical methods to directly monitor the enantioselectivity of the resulting supramolecular assemblies. Presented herein are two fluorescent core-substituted naphthalene-diimide-based donor and acceptor molecules with minimal structural mismatch and they comprise strong self-recognizing chiral motifs to determine the self-sorting process. As a consequence, stereoselective supramolecular polymerization with an unprecedented chirality control over energy transfer has been achieved. This chirality-controlled energy transfer has been further exploited as an efficient probe to visualize microscopically the chirality driven self-sorting. To the core: Presented herein are two fluorescent core-substituted naphthalene-diimide-based donor and acceptor molecules with minimal structural mismatch, and they comprise self-recognizing chiral motifs to facilitate the self-sorting process. Visual discrimination of the stereoselective self-sorted and co-assembled supramolecular polymers is presented by using chirality-controlled energy transfer.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201708267

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