Premium
Unusual Magnetic Field Responsive Circularly Polarized Luminescence Probes with Highly Emissive Chiral Europium(III) Complexes
Author(s) -
Zhang Junhui,
Dai Lixiong,
Webster Alexandra M.,
Chan Wesley Ting Kwok,
Mackenzie Lewis E.,
Pal Robert,
Cobb Steven L.,
Law GaLai
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202012133
Subject(s) - luminescence , chirality (physics) , europium , circular polarization , quantum yield , magnetic field , circular dichroism , magnetic circular dichroism , optically active , materials science , chemistry , nanotechnology , crystallography , optoelectronics , optics , physics , fluorescence , organic chemistry , chiral symmetry breaking , quantum mechanics , astronomy , spectral line , nambu–jona lasinio model , quark
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 → 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.