Steric and Electronic Control of Chiral Eu(III) Complexes for Effective Circularly Polarized Luminescence

ACS Omega
Yuichi KitagawaYasuchika Hasegawa

Abstract

Circularly polarized luminescence (CPL) is characterized by the differential emission of right and left circularly polarized light by a chiral molecule. This mini-review describes the recent developments in chiral trivalent europium (Eu(III)) complexes with effective CPL. CPL has many potential applications in security tags, lasers, and three-dimensional organic electroluminescence devices, which is one of the most intensely investigated topics in molecular luminophores. Eu(III) complexes have attracted considerable attention as effective CPL luminophores for the above-mentioned applications. In this review, recent studies on the Eu(III) CPL, including the steric (dimer, tetramer, aggregates, and coordination polymers) and electronic control (mononuclear) of Eu(III) complexes for the construction of a luminophore with effective CPL, are discussed. The characteristic CPL applications employing the chiral mononuclear Eu(III) complexes are also described. Chiral Eu(III) complexes with well-designed organic ligands can result in the establishment of new research areas in the fields of photochemistry and materials science.

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Citations

May 28, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Tatyana E KokinaMark B Bushuev
Nov 5, 2020·Scientific Reports·Haruki MinamiNorihisa Kobayashi
Apr 29, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Md Jahidul IslamYasuchika Hasegawa
Jun 3, 2021·Chemical Society Reviews·David ParkerKa-Leung Wong
Jul 15, 2021·Chemical Science·Jake L GreenfieldMatthew J Fuchter
Sep 23, 2020·Journal of the American Chemical Society·Yan Bing TanTsuyoshi Kawai

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