NIR‐Circularly Polarized Luminescence from Chiral Complexes of Lanthanides and d‐Metals

Abstract

In recent years, circularly polarized luminescence (CPL) has witnessed a renaissance, due to the increased popularity of CPL as a spectroscopic technique and greater accessibility to instrumentation. New efficient CPL emitters have been designed and many applications, ranging from electronic devices to microscopy have been proposed. Most examples of CPL are within the visible range, while few cases of near infrared (NIR) CPL active complexes are available. NIR-CPL compounds may have applications in the telecommunication industry, electronic devices and bioassays. In the following, we shall give an overview of the recent developments allowing for the measurements of NIR-CPL, and describe the chiroptical properties of metal complexes which achieve this feat.

Enhancement of Magneto-Chiral Dichroism Intensity by Chemical Design: The Key Role of Magnetic-Dipole Allowed Transitions

“…The strong MChD response observed here even in the absence of high magnetic anisotropy features opens great perspectives. Indeed, the rational design of highly anisotropic Er III chiral complexes is expected to lead to even stronger MChD responses that can coexist with relevant single-molecule magnet properties , or circular polarized emission. , …”

Magneto-Chiral Dichroism in a One-Dimensional Assembly of Helical Dysprosium(III) Single-Molecule Magnets

“…Nowadays, the field is rapidly expanding among the chemistry community for the general interest that chiral systems have raised in several fields, such as chiroptical switching and sensing, circularly polarized light emission, , and chiral induced spin selectivity, , to name a few.…”

“…After the first observation of MChD through visible-light emission, 1 MChD has been proven to be universal, with reports showing its observation in the entire electromagnetic spectrum (from hard X-rays to microwaves). 10−20 Nowadays, the field is rapidly expanding among the chemistry community for the general interest that chiral systems have raised in several fields, such as chiroptical switching and sensing, 21 circularly polarized light emission, 22,23 and chiral induced spin selectivity, 24,25 to name a few.…”