Magneto-Luminescence Correlation in the Textbook Dysprosium(III) Nitrate Single-Ion Magnet

Abstract

Multifunctional Single-Molecule Magnets (SMMs) or Single-Ion Magnets (SIMs) are intriguing molecule-based materials presenting an association of the slow magnetic relaxation with other physical properties. In this article, we present an example of a very simple molecule based on Dy 3+ ion exhibiting a field induced SIM property and a characteristic Dy 3+ based emission. The [Dy(NO 3 ) 3 (H 2 O) 4 ]·2H 2 O (1) complex is characterized by the means of single crystal X-Ray diffraction and their magnetic and photo-luminescent properties are investigated. We demonstrate here that it is possible to correlate the magnetic and luminescent properties and to obtain the Orbach barrier from the low temperature emission spectra, which is often difficult to properly extract from the magnetic measurements, especially in the case of field induced SIMs.

Structural Trends in a 3 d‐4 f System: Ln(NO3)3−Cu(2,2‐bipyridine)2(NO3)2 (Ln=La−Nd, Sm−Yb)

“…In this context, interesting observations have been made in the case of a few aquonitrato complexes. [Dy(NO 3 ) 3 (H 2 O) 4 ]⋅2H 2 O was found to exhibit magnetic field induced SMM property at low temperature . On the other hand, the same compound as well as its Er analog when crystallised with a crown ether, the non‐covalently bonded crown ether was shown to induce normal (zero static field) SMM behaviour .…”

Triplet‐State Position and Crystal‐Field Tuning in Opto‐Magnetic Lanthanide Complexes: Two Sides of the Same Coin

“…Although an initial increasei n the magnetic relaxation times (t)c an be observed up to 1400 Oe, ad ecrease upon higherf ieldsi saclear indicator of the direct process becomingp redominant for both low-and high-frequency processes ( Figure S10 in the Supporting Information). [64,65] As uitable fit of the low frequency process was obtainedb yi ncludingc ontributions from the directa nd QTM processes [Eq. (1)].I nc ontrast, the high-frequency process, which is also thermally activated, wasf it by considering contributions from direct and QTM processes, in addition to ac onstant representing the Orbach process [Eq.…”

Molecular Magnetism of Lanthanides Complexes and Networks

“…One of their assets is that they can give rise easily to multi-functional materials. Such multi-functionality is found in the collection of papers of this Special Issue with contributions that highlight the unprecedented magnetic properties of lanthanide-based molecules together with chirality [1], luminescence [2,3] or electrical conductivity properties [4]. Innovative synthetic routes such as the use of helical [1,5] or protonated ligands [6] together with cutting edge characterization techniques of 4f-SMM are presented [7].…”