Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Eu(III) Complexes

Zhang, Junhui; Dai, Lixiong; Webster, Alexandra M.; Chan, Wesley Ting Kwok; Cobb, Steven L.; Law, Ga-Lai

doi:10.1002/anie.202012133

Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Eu(III) Complexes

Zhang, Junhui; Dai, Lixiong; Webster, Alexandra M.; Chan, Wesley Ting Kwok; Cobb, Steven L.; Law, Ga-Lai

Authors

Junhui Zhang

Lixiong Dai

Alexandra M. Webster

Wesley Ting Kwok Chan

Professor Steven Cobb s.l.cobb@durham.ac.uk
Professor

Ga-Lai Law

Abstract

Chirality is ubiquitous within biological systems where many of the roles and functions are still undetermined. Given this, there is a clear need to design and develop sensitive chiral optical probes that can function within a biological setting. Here we report the design and synthesis of magnetically responsive Circularly Polarized Luminescence (CPL) complexes displaying exceptional photophysical properties (quantum yield up to 31% and |g lum | up to 0.240) by introducing chiral substituents onto the macrocyclic scaffolds. Magnetic CPL responses are observed in these chiral Eu(III) complexes, promoting an exciting development to the field of magneto‐optics. The |g lum | of the 5 D 0 à 7 F 1 transition increases by 20% from 0.222 (0 T) to 0.266 (1.4 T) displaying a linear relationship between the Δg lum and the magnetic field strength. These Eu(III) complexes with magnetic CPL responses, provides potential development to be used in CPL imaging applications due to improved sensitivity and resolution.

Citation

Zhang, J., Dai, L., Webster, A. M., Chan, W. T. K., Cobb, S. L., & Law, G. (2020). Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Eu(III) Complexes. Angewandte Chemie International Edition, 60(2), 1004-1010. https://doi.org/10.1002/anie.202012133

Journal Article Type	Article
Acceptance Date	Sep 21, 2020
Online Publication Date	Nov 3, 2020
Publication Date	2020
Deposit Date	Oct 6, 2020
Publicly Available Date	Feb 24, 2021
Journal	Angewandte Chemie International Edition
Print ISSN	1433-7851
Electronic ISSN	1521-3773
Publisher	Wiley
Peer Reviewed	Peer Reviewed
Volume	60
Issue	2
Pages	1004-1010
DOI	https://doi.org/10.1002/anie.202012133

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© 2020 The Authors. Published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.