Instituto de Fisica, Uiniversidade Federal do Rio de Janeiro, Rio de Janeiro 21944 (Brasil)
Ferromagnetic order in the sulfur-containing nitronyl nitroxide radical, 2-(4-thiomethyl)phenyl-4,4,5,5-tetramethylimidazoline-l-oxyl-3-oxide, NIT(SMe)Ph†
Article first published online: 15 SEP 2004
Copyright © 1995 Verlag GmbH & Co. KGaA, Weinheim
Volume 7, Issue 5, pages 476–478, May 1995
How to Cite
Caneschi, A., Ferraro, F., Gatteschi, D., le Lirzin, A., Novak, M. A., Rentschler, E. and Sessoli, R. (1995), Ferromagnetic order in the sulfur-containing nitronyl nitroxide radical, 2-(4-thiomethyl)phenyl-4,4,5,5-tetramethylimidazoline-l-oxyl-3-oxide, NIT(SMe)Ph. Adv. Mater., 7: 476–478. doi: 10.1002/adma.19950070515
Thanks are due to Dr. C. Paulsen, CNTBT-CNRS, Grenoble, for the ac susceptibility measurements. The Human Capital and Mobility Grants ERBCHICT940957, S/SCI/915204, the financial contributions of Italian MURST are gratefully acknowledged.
- Issue published online: 15 SEP 2004
- Article first published online: 15 SEP 2004
Low-temperature magnetic measurements on powdered samples of the title nitronyl nitroxide radical (see figure) are reported. Evidence for ferromagnetic order with a Tc of ca. 0.2 K is found. It is proposed that the diffuse electronic cloud of the sulfur atom in the radical substituent generates sufficiently strong ferromagnetic interactions even at large distances.