Chemical Research in Chinese Universities ›› 2010, Vol. 26 ›› Issue (2): 170-173.

• Articles • Previous Articles     Next Articles

Synthesis, Crystal Structure and Magnetic Behavior of a NovelCd(II) Complex with Four Nitroxide Radicals

GAO Dong-zhao*, ZHANG Guo-ying, XU Yan-yan and SUN Ya-qiu   

  1. Tianjin Key Laboratory of Structure and Performance for Functional Molecule, College of Chemistry and Life Science, Tianjin Normal University, Tianjin 300387, P. R. China
  • Received:2009-06-29 Revised:2009-10-16 Online:2010-03-25 Published:2010-05-25
  • Contact: GAO Dong-zhao. E-mail: tjgaodz@sina.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.20901059 and 20771083).

Abstract:

A novel diamagnetic-metal Cd(II) complex with four nitroxide radicals [Cd(IM4Py)4Cl2](IM4Py= 2-(4'-pyridinyl)-4,4,5,5-tetramethylimidazoline-1-oxyl) was synthesized and characterized by elemental analyses, IR spectra, UV-Vis spectra and X-ray single crystal diffraction. The complex crystallized in triclinic space group P1 with a=0.93285(14) nm, b=1.16827(18) nm, c =1.3660(2) nm, α =112.759(2)°, β =104.524(2)°, γ =92.008(3)°, V=1.3143(3) nm3, Z=1, Dc =1.335 g/cm3, the final R1 =0.0423 and wR2 =0.1009. In the title complex, each Cd(II) ion adopting a distorted octahedral geometry is coordinated by two Cl anions and four pyridyl-N atoms from four IM4Py ligands. The magnetic measurements show the weak antiferromagnetic interactions between the nitroxide radicals.

Key words: Cd(II) complex; Nitroxide radical; Crystal structure; Magnetic behavior