Issue 28, 2019

Exploring the dual functionality of an ytterbium complex for luminescence thermometry and slow magnetic relaxation

Abstract

We present a comprehensive investigation of the magnetic and optical properties of an ytterbium complex, which combines two desirable and practical features into a single molecular system. Based upon YbIII ions that promote near-infrared optical activity and a chemical backbone that is ideal for an in-depth understanding of the magnetic behaviour, we have designed a multifunctional opto-magnetic species that operates as a luminescent thermometer and as a single-molecule magnet (SMM). Our magnetic investigations, in conjunction with ab initio calculations, reveal one of the highest energy barriers reported for an YbIII-based complex. Moreover, we correlate this anisotropic barrier with the emission spectrum of the compound, wherein we provide a complete assignment of the energetic profile of the complex. Such studies lay the foundation for the design of exciting multi-faceted materials that are able to retain information at the single-molecule level and possess built-in thermal self-monitoring capabilities.

Graphical abstract: Exploring the dual functionality of an ytterbium complex for luminescence thermometry and slow magnetic relaxation

Supplementary files

Article information

Article type
Edge Article
Submitted
21 yan 2019
Accepted
27 may 2019
First published
28 may 2019
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2019,10, 6799-6808

Exploring the dual functionality of an ytterbium complex for luminescence thermometry and slow magnetic relaxation

G. Brunet, R. Marin, M. Monk, U. Resch-Genger, D. A. Gálico, F. A. Sigoli, E. A. Suturina, E. Hemmer and M. Murugesu, Chem. Sci., 2019, 10, 6799 DOI: 10.1039/C9SC00343F

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