Luminescent Detection of Photomagnetic Effect in a Near-Infrared Emissive Neodymium(III)-Octacyanidotungstate(IV) Framework.

Authors

Jakub J Zakrzewski, Robert Jankowski, Maja Romanowska, Junhao Wang, Dawid Pinkowicz, Barbara Sieklucka, Shin-Ichi Ohkoshi, Szymon Chorazy

Published in

Angewandte Chemie (International ed. in English). Pages e202424651. Apr 22, 2025. Epub Apr 22, 2025.

Abstract

Photomagnetic materials form a class of magnetic systems, in which light irradiation changes their magnetization. Photomagnetic behavior is often observed in spin-transition materials, including spin-crossover complexes, and sometimes it leads to magnetic ordering. Photo-induced magnetization can affect different physical properties, including second harmonic generation. Still, despite a growing number of luminescent spin-crossover systems, the simultaneous switching of both magnetism and luminescence was not explored. In this regard, we present systematic studies for a novel coordination polymer composed of anionic NdIII-[WIV(CN)8]4- layers, crystallizing with chiral organic cations embedded in the interlayer space. Not only we observe and theoretically rationalize near-infrared emission of NdIII centers sensitized by [WIV(CN)8]4- units, but we also found a plausible pathway to track the photomagnetic effect throughout the analysis of the Nd3+ excitation spectra and their temperature dependence. The observed thermally reversible effects in luminescence were correlated with the results of photomagnetic studies, providing an attractive pathway to monitor the light-induced magnetization changes through a photoluminescent read-out.

PMID:
40260521
Bibliographic data and abstract were imported from PubMed on 22 Apr 2025.

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