Chinese Journal of Applied Chemistry

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Synthesis, Crystal Structure and Magnetic Properties of a Four-spin Nitroxide Radical-Mn(Ⅱ) Complex

GAO Yuanyuan1, WANG Chao1, WANG Yali1, MA Yue1,2, WANG Qinglun1, LIAO Daizheng1,3*   

  1. (1.Department of Chemistry,Nankai University,Tianjin 300071,China;
    2.Tianjin Key Laboratory on Metal and Molecule-based Material Chemistry,Nankai University,Tianjin 300071,China;
    3.State Key Laboratory of Physical Chemistry of Solid Surface,Xiamen University,Xiamen 361005,Chian)
  • Received:2012-09-20 Revised:2012-10-16 Published:2012-12-10 Online:2012-12-10

Abstract: A four-spin complex {[Mn(hfac)2]2(4P4NIT)2}·CHCl3(4P4NIT=2-(4′-(4″-pyridyl)phenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide, hfac=1,1,1,5,5,5-hexafluoro-acetylaceonate anion) was synthesized using a pyridyl substituted nitroxide radical. The single crystal X-ray analysis reveals that two 4P4NIT radicals act as bridging ligand linking two Mn(hfac)2 units together. The magnetic study shows that there exists strong magnetic interaction between Mn(Ⅱ) ions and directly bonded radicals.

Key words: nitronyl nitroxide radical, Mn(Ⅱ), crystal structure, magnetic properties

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