Issue 38, 2013

Single-molecule magnet [Tb(hfac)3(2pyNO)] (2pyNO = t-butyl 2-pyridyl nitroxide) with a relatively high barrier of magnetization reversal

Abstract

The crystallographic analysis of the title compound shows that there are two crystallographically independent molecules in a unit cell. The magnetic study clarified that every molecule behaved as a single-molecule magnet. Two series of the out-of-phase ac susceptibility signals appeared around 10 K even at zero dc field. The activation energies (Δ) for the magnetization reversal were estimated as Δ(1)/kB = 39.2(3) K with τ0(1) = 4.2(4) × 10−8 s and Δ(2)/kB = 36(2) K with τ0(2) = 4.1(12) × 10−7 s, where τ0 stands for the pre-exponential factor in the Arrhenius analysis. Magnetic hysteresis was recorded at 1.6 K by means of a pulsed-field technique. The role of exchange coupling is discussed.

Graphical abstract: Single-molecule magnet [Tb(hfac)3(2pyNO)] (2pyNO = t-butyl 2-pyridyl nitroxide) with a relatively high barrier of magnetization reversal

Supplementary files

Article information

Article type
Paper
Submitted
03 Jul 2013
Accepted
22 Jul 2013
First published
23 Jul 2013

Dalton Trans., 2013,42, 13968-13973

Single-molecule magnet [Tb(hfac)3(2pyNO)] (2pyNO = t-butyl 2-pyridyl nitroxide) with a relatively high barrier of magnetization reversal

R. Murakami, T. Ishida, S. Yoshii and H. Nojiri, Dalton Trans., 2013, 42, 13968 DOI: 10.1039/C3DT51784E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements