The Organic Ammonium Counterion Effect on Slow Magnetic Relaxation of the [Er(hfac)4]− Complexes-Reference-Cited by-同舟云学术

The Organic Ammonium Counterion Effect on Slow Magnetic Relaxation of the [Er(hfac)4]− Complexes

Published:2023-06-16 Issue:6 Volume:9 Page:159
ISSN:2312-7481
Container-title:Magnetochemistry
language:en
Short-container-title:Magnetochemistry

Author:

Prokhorova Tatiana G.¹,Korchagin Denis V.¹^ORCID,Shilov Gennady V.¹,Dmitriev Alexei I.¹,Zhidkov Mikhail V.¹,Yagubskii Eduard B.¹^ORCID

Affiliation:

1. Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Russia

Abstract

The first mononuclear anionic erbium complex [Er(hfac)4]− (hfac = hexafluoroacetylacetone) with an organic ammonium cation [(CH3)4N+] as the counterion was synthesized and structurally and magnetically characterized. The coordination geometries around the Er ions are square antiprisms with pseudo-D4d symmetry. The complex shows distinct field-induced slow magnetization relaxation, which is described by a combination of Orbach (Ueff/kB~28.54(8) K.) and direct mechanisms. Quantum chemical calculations were performed to analyze the magnetic properties of the complex under consideration.

Funder

This research received no external funding.

Publisher

MDPI AG

Subject

Materials Chemistry,Chemistry (miscellaneous),Electronic, Optical and Magnetic Materials

Link

https://www.mdpi.com/2312-7481/9/6/159/pdf

Reference42 articles.

1. Lanthanide(III)-Based Single-Ion Magnets;Dey;ACS Omega,2018

2. Lanthanide single-molecule magnets with high anisotropy barrier: Where to from here?;Zhu;NSR,2022

3. A criterion for the anisotropy barrier in single-molecule magnets;Waldmann;Inorg. Chem.,2007

4. What is not required to make a single molecule magnet;Neese;Faraday Discuss.,2011

5. Can large magnetic anisotropy and high spin really coexist?;Ruiz;Chem. Commun.,2008