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Title: Exciton coupling chirality in helicene-porphyrin conjugates
Enantiopure helicene-porphyrin conjugates were prepared. They show strong changes in their circular dichroic response as compared to classical helicene derivatives, with highly intense bisignate Exciton Coupling (EC) signal and Δ ε values up to 680 M −1 cm −1 for the Soret band. They also display circularly polarized fluorescence in the (far-)red region, with dissymmetry factors up to 7 × 10 −4 .
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Journal Name:
Chemical Communications
Page Range or eLocation-ID:
10743 to 10746
Sponsoring Org:
National Science Foundation
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