Issue 10, 2012

Slow magnetic relaxation and antiferromagnetic ordering in a one dimensional nitronyl nitroxide–Tb(iii) chain

Abstract

Reaction of the nitronyl nitroxide radical NIT-3Brthien with Ln(hfac)3 affords two one-dimensional lanthanide–nitronyl nitroxide compounds [Ln(hfac)3(NIT-3Brthien)] (Ln = Gd(III) 1, Tb(III) 2; NIT-3Brthien = 2-(3′-bromo-2′-thienyl)-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide). Single crystal X-ray crystallographic analysis reveals that both compounds are composed of linear chains built up by Ln(hfac)3 units bridged by NIT-5Brthien radicals through their NO groups. DC magnetic measurements reveal that the Gd complex is paramagnetic above 2.0 K, while the Tb complex orders antiferromagnetically at 4.0 K. Moreover, complex 2 possesses frequency-dependence of ac magnetic susceptibilities. The magnetic behavior of complex 2 is unique and exhibits the coexistence of slow magnetic relaxation, metamagnetism and antiferromagnetic three-dimensional magnetic ordering.

Graphical abstract: Slow magnetic relaxation and antiferromagnetic ordering in a one dimensional nitronyl nitroxide–Tb(iii) chain

Supplementary files

Article information

Article type
Paper
Submitted
05 Jul 2012
Accepted
16 Jul 2012
First published
18 Jul 2012

New J. Chem., 2012,36, 2088-2093

Slow magnetic relaxation and antiferromagnetic ordering in a one dimensional nitronyl nitroxide–Tb(III) chain

R. Liu, C. Zhang, X. Mei, P. Hu, H. Tian, L. Li, D. Liao and J. Sutter, New J. Chem., 2012, 36, 2088 DOI: 10.1039/C2NJ40570A

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