Synthesis, structure and magnetic properties of a Pr(III) complex with chelating nitronyl nitroxide radicals

Author: Li Dong-Jiao   Gao Dong-Zhao   Liao Dai-Zheng   Jiang Zong-Hui   Yan Shi-Ping  

Publisher: Taylor & Francis Ltd

ISSN: 0095-8972

Source: Journal of Coordination Chemistry, Vol.57, Iss.17-18, 2004-11, pp. : 1571-1576

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Abstract

The synthesis and structure of Pr(III) complex with chelating nitronyl nitroxide radicals of formula [Pr(III)(NIT2Py) 2 (NO 3 ) 3 ] (NIT2Py = 2-(2′-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) is reported. Pr(III) is ten-coordinate with three bidentate nitrate anions and two radicals. The radical behaves as a bidentate chelating ligand through one oxygen atom of the nitronyl nitroxide group and one nitrogen atom of a pyridine ring. The electronic spectrum for the complex in THF and magnetic susceptibilities from 77-300 K are reported.

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