Table of Contents
International Journal of Inorganic Chemistry
Volume 2013, Article ID 272156, 5 pages
http://dx.doi.org/10.1155/2013/272156
Research Article

Crystal Structures and Magnetic Properties of Two New Cobalt(II) Complexes with Triazole-Substituted Nitronyl and Imino Nitroxide Radicals

1College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455002, China
2School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450052, China

Received 23 March 2013; Revised 29 May 2013; Accepted 8 June 2013

Academic Editor: Maurizio Peruzzini

Copyright © 2013 Jing Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Two new cobalt(II) complexes of formula [Co(hfac)2(NITphtrz) 1 and Co(hfac)2(IMphtrz) 2] have been prepared and characterized structurally [where NITphtrz = 4,4,5,5-tetramethyl-2-(2-phenyl-1,2,3-triazole-4-yl)imidazoline-1-oxyl-3-oxide and IMphtrz = 4,4,5,5-tetramethyl-2-(2-phenyl-1,2,3-triazole-4-yl)imidazoline-1-oxyl]. All of the complexes crystallize in an isomorphous triclinic space group with the Co(II) ion octahedrally coordinated via the bidentate chelating mode. The magnetic measurements show that two complexes exhibit antiferromagnetic interactions between the metal ions and the nitroxide radicals.