Chiral Chromium(III) Complexes as Promising Candidates for Circularly Polarized Luminescence
Metadatos
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Wiley-VCH Verlag GmbH
Materia
Chromium Chirality Chiroptical properties Circularly polarized luminescence
Fecha
2021-08-10Referencia bibliográfica
Poncet, M... [et al.] (2021), Chiral Chromium(III) Complexes as Promising Candidates for Circularly Polarized Luminescence. ChemPhotoChem. [https://doi.org/10.1002/cptc.202100146]
Patrocinador
Swiss National Science Foundation (SNSF) European Commission 200020178758Resumen
The search for chiral chromophores with efficient circularly
polarized luminescence (CPL) is an on-going hot topic in
chemistry due to their potential applications in emerging fields
such as spintronics and photonics. Beyond the largely exploited
p-block, 4d/5d-block and f-block chiral entities, chiral chromium
(III) complexes have recently attracted interest because of the
abundancy of chromium in the earth’s crust, its kinetic inertness
and its promising metal-centered Cr(2E) and Cr(2T1) phosphorescence.
The associated spin-flip transitions could provide large
dissymmetric factor (glum) and high luminescence quantum
yields (ϕ) when six-membered strong-field chelate rings are
coordinated to chiral six-coordinate Cr(III) centers. In this
minireview, we intend to focus our attention on the state-ofthe-
art for the design of pseudo-octahedral chiral mononuclear
Cr(III) complexes for which chiroptical properties were investigated.
The promising electronic properties of these complexes
together with their low cost make these underexplored systems
appealing candidates for CPL applications.