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Metal-directed synthesis of quadruple-stranded helical Eu(iii) molecular switch: a significant improvement in photocyclization quantum yield

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Abstract

The self-assembly of a quadruple-stranded Eu(III) helicate induces the conformation transformation of a DAE-based photochromic ligand from parallel to antiparallel, which brings a significant improvement in the photocyclization quantum yield (Φo–c) as compared with the free ligand. Furthermore, the photocontrolled open- and closed-rings of the ligand realized a reversible modulation toward Eu3+ center emission.

Graphical abstract: Metal-directed synthesis of quadruple-stranded helical Eu(iii) molecular switch: a significant improvement in photocyclization quantum yield

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Article information


Submitted
24 Aug 2020
Accepted
24 Sep 2020
First published
24 Sep 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Metal-directed synthesis of quadruple-stranded helical Eu(III) molecular switch: a significant improvement in photocyclization quantum yield

Y. Zhang, Y. Zhou, T. Gao, P. Yan and H. Li, Chem. Commun., 2020, Advance Article , DOI: 10.1039/D0CC05698G

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