A1 Journal article (refereed)
A zero-field single-molecule magnet with luminescence thermometry capabilities containing soft donors (2022)

Marin, R., Alves Gálico, D., Gayfullina, R., Moilanen, J. O., Carlos, L. D., Jaque, D., & Murugesu, M. (2022). A zero-field single-molecule magnet with luminescence thermometry capabilities containing soft donors. Journal of Materials Chemistry C, 10(37), 13946-13953. https://doi.org/10.1039/d2tc01661c

JYU authors or editors

Gayfullina, Rezeda
Moilanen, Jani

Publication details

All authors or editors: Marin, Riccardo; Alves Gálico, Diogo; Gayfullina, Rezeda; Moilanen, Jani O.; Carlos, Luís D.; Jaque, Daniel; Murugesu, Muralee

Journal or series: Journal of Materials Chemistry C

ISSN: 2050-7526

eISSN: 2050-7534

Publication year: 2022

Publication date: 23/06/2022

Volume: 10

Issue number: 37

Pages range: 13946-13953

Publisher: Royal Society of Chemistry (RSC)

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1039/d2tc01661c

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/92194

Abstract

Simultaneous fine-tune of magnetic and optical properties in lanthanide single-molecule magnets (SMMs) is a daunting task. Even more so when additional functionalities, like luminescence thermometry, are sought after. Herein, we explore the use of a ligand with both soft and hard donor atoms (thiobenzoate, tba−) as a strategy to prepare a multifunctional optomagnetic lanthanide complex. The proposed mononuclear Dy3+ complex acts as a zero-field SMM, whose energy barrier to magnetization reversal was confirmed from the analysis of the photoluminescence spectrum. Moreover, the temperature dependence of the emission spectral profile was harnessed to build a thermometric approach working below 12 K – where the complex behaves as an SMM. In search for general trends informing the preparation of similar multifunctional SMMs, we modelled the electronic properties of a series of complexes where the sulfur atom of tba− is replaced for other chalcogens (O, Se, Te). These calculations show that careful choice of ligands with soft donor atoms can boost both magnetic and thermometric performances, paving the way for the rational design of novel multifunctional lanthanide complexes.

Keywords: molecules; coordination complexes; magnetic properties; luminescence

Fields of science: