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Enantioselective Light Harvesting with Perylenediimide Guests on Self-Assembled Chiral Naphthalenediimide Nanofibers

Sethy, R; Kumar, J; Metivier, R; Louis, M; Nakatani, K; Mecheri, N Mohan T; Subhakumari, A; Thomas, KG; Kawai, T; Nakashima, T, Angewandte Chemie-International Edition, 2017, 56, 15053-15057.

Références :

Angewandte Chemie-International Edition, 2017, 56, 15053-15057.

Auteur(s) : 

Sethy, R; Kumar, J; Metivier, R; Louis, M; Nakatani, K; Mecheri, N Mohan T; Subhakumari, A; Thomas, KG; Kawai, T; Nakashima, T

Self‐assembling molecular systems often display amplified chirality compared to the monomeric state, which makes the molecular recognition more sensitive to chiral analytes. Herein, we report the almost absolute enantioselective recognition of a chiral perylenediimide (PDI) molecule by chiral supramolecular nanofibers of a bichromophoric naphthalenediimide (NDI) derivative. The chiral recognition was evaluated through the Förster resonance energy transfer (FRET) from the NDI‐based host nanofibers to the guest PDI molecules. The excitation energy was successfully transferred to the guest molecule through efficient energy migration along the host nanofiber, thus demonstrating the light‐harvesting capability of these hybrid systems. Furthermore, circularly polarized luminescence (CPL) was enantioselectively sensitized by the guest molecule as the wavelength band and sign of the CPL signal were switched in response to the chiral guest molecule.

graphical abstract
Type :
Publication
Dates :
Paru le 20 novembre 2017
Informations complémentaires :
DOI: 10.1002/anie.201707160

 

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