CRCU

Chemical Research in Chinese Universities ›› 1999, Vol. 15 ›› Issue (3): 248-252.

• Articles • Previous Articles     Next Articles

Synthesis of Enantiomeric Planar Square Ni2+ -and Cu2+ -Schiff Base Complexes

ZHAO Jian-zhang1, WANG Shu-gang1, WANG Xu1, LIU Ju-zheng1, QIAO Xiao-guang1, LI Yao-xian1, WANG Hua2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, P. R. China;
    2. Third Clinical College & China-Japan Union Hospital of Norman Bethune Unviersity of Medical Sciences, Changchun 130023, P. R. China
  • Received:1999-01-05 Online:1999-08-24 Published:2011-08-17
  • Supported by:

    Supported by the National Natural Science Foundation of China.

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Abstract: Enantiomeric four chelated planar square schiff base-Cu2+ and Ni2+ complexes were synthesized using ( 1R,trans )-and ( 1S,trans)-N,N'bis(2'-hydroxyphenyl methylene)-1,2-diaminocyclohexane. The chirality could not be shown by usual UV- Vis spectra. The intrinsic chiral difference of the enantiomeric complexes can be displayed by circular dichroism(CD) spectra. The Cotton effect of every polarlight-sensitive absorption of one enantiomer will be the opposite of that of the other enantiomer. It was found that no tetrahedron form exists for Ni2+ complexes, which was determined with UV-Vis spectra and Electron Paramagnetic Resonance(EPR) measures.

Key words: Chiral transition metal-schiff base complex, Circular dichroism(CD), Enantiomeric