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

Junhui Zhang; Lixiong Dai; Alexandra M. Webster; Wesley Ting Kwok Chan; Lewis E. Mackenzie; Robert Pal; Steven L. Cobb; Ga Lai Law

doi:10.1002/anie.202012133

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

Junhui Zhang, Lixiong Dai, Alexandra M. Webster, Wesley Ting Kwok Chan, Lewis E. Mackenzie, Robert Pal, Steven L. Cobb, Ga Lai Law (Corresponding Author)

Research output: Journal article publication › Journal article › Academic research › peer-review

65 Citations (Scopus)

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 ⁵D₀ → ⁷F₁ 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.

Original language	English
Pages (from-to)	1004-1010
Number of pages	7
Journal	Angewandte Chemie - International Edition
Volume	60
Issue number	2
DOIs	https://doi.org/10.1002/anie.202012133
Publication status	Published - 11 Jan 2021

Keywords

chirality
circularly polarized luminescence
lanthanide
magnetic properties

ASJC Scopus subject areas

Catalysis
General Chemistry

More information

10.1002/anie.202012133

http://hdl.handle.net/10397/88830

Cite this

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title = "Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Europium(III) Complexes",

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 |glum| up to 0.240) by introducing chiral substituents onto the macrocyclic scaffolds. Magnetic CPL responses are observed in these chiral EuIII complexes, promoting an exciting development to the field of magneto-optics. The |glum| of the 5D0 → 7F1 transition increases by 20 % from 0.222 (0 T) to 0.266 (1.4 T) displaying a linear relationship between the Δglum and the magnetic field strength. These EuIII complexes with magnetic CPL responses, provides potential development to be used in CPL imaging applications due to improved sensitivity and resolution.",

keywords = "chirality, circularly polarized luminescence, lanthanide, magnetic properties",

author = "Junhui Zhang and Lixiong Dai and Webster, {Alexandra M.} and Chan, {Wesley Ting Kwok} and Mackenzie, {Lewis E.} and Robert Pal and Cobb, {Steven L.} and Law, {Ga Lai}",

note = "Funding Information: G.‐L.L. gratefully acknowledge the Hong Kong Research Grants Council (PolyU153009/19P), the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University ((a) University Research Facility in Chemical and Environmental Analysis (UCEA); (b) University Research Facility in Life Sciences (ULS)) and the National Natural Science Foundation of China (NSFC, 21875201). We also wish to thank the Engineering and Physical Sciences Research Council (EPSRC) for financial support (AMW, Department of Chemistry EPSRC DTG, [EP/L504762/1]. Publisher Copyright: {\textcopyright} 2020 The Authors. Published by Wiley-VCH GmbH",

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language = "English",

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Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Europium(III) Complexes. / Zhang, Junhui; Dai, Lixiong; Webster, Alexandra M. et al.
In: Angewandte Chemie - International Edition, Vol. 60, No. 2, 11.01.2021, p. 1004-1010.

Research output: Journal article publication › Journal article › Academic research › peer-review

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AU - Zhang, Junhui

AU - Dai, Lixiong

AU - Webster, Alexandra M.

AU - Chan, Wesley Ting Kwok

AU - Mackenzie, Lewis E.

AU - Pal, Robert

AU - Cobb, Steven L.

AU - Law, Ga Lai

N1 - Funding Information: G.‐L.L. gratefully acknowledge the Hong Kong Research Grants Council (PolyU153009/19P), the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University ((a) University Research Facility in Chemical and Environmental Analysis (UCEA); (b) University Research Facility in Life Sciences (ULS)) and the National Natural Science Foundation of China (NSFC, 21875201). We also wish to thank the Engineering and Physical Sciences Research Council (EPSRC) for financial support (AMW, Department of Chemistry EPSRC DTG, [EP/L504762/1]. Publisher Copyright: © 2020 The Authors. Published by Wiley-VCH GmbH

PY - 2021/1/11

Y1 - 2021/1/11

N2 - 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 |glum| up to 0.240) by introducing chiral substituents onto the macrocyclic scaffolds. Magnetic CPL responses are observed in these chiral EuIII complexes, promoting an exciting development to the field of magneto-optics. The |glum| of the 5D0 → 7F1 transition increases by 20 % from 0.222 (0 T) to 0.266 (1.4 T) displaying a linear relationship between the Δglum and the magnetic field strength. These EuIII complexes with magnetic CPL responses, provides potential development to be used in CPL imaging applications due to improved sensitivity and resolution.

AB - 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 |glum| up to 0.240) by introducing chiral substituents onto the macrocyclic scaffolds. Magnetic CPL responses are observed in these chiral EuIII complexes, promoting an exciting development to the field of magneto-optics. The |glum| of the 5D0 → 7F1 transition increases by 20 % from 0.222 (0 T) to 0.266 (1.4 T) displaying a linear relationship between the Δglum and the magnetic field strength. These EuIII complexes with magnetic CPL responses, provides potential development to be used in CPL imaging applications due to improved sensitivity and resolution.

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KW - circularly polarized luminescence

KW - lanthanide

KW - magnetic properties

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U2 - 10.1002/anie.202012133

DO - 10.1002/anie.202012133

M3 - Journal article

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AN - SCOPUS:85096675415

SN - 1433-7851

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SP - 1004

EP - 1010

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 2

ER -

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

Abstract

Keywords

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