Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (08): 1738.doi: 10.3969/j.issn.0251-0790.2012.08.020

• Organic Chemistry • Previous Articles     Next Articles

Coordination and Crystal Structure of β-Ketoanilides

CHAI Wei1, LI Yue-Jie1, XIE Zhuo-Feng1, HUANG Yao-Dong1, CHANG Ji-Young2   

  1. 1. Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin Key Laboratory of Biological and Pharmaceutical Engineering, Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2. Department of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-744, Korea
  • Received:2011-11-03 Online:2012-08-10 Published:2012-08-10

Abstract: β-Ketoanilide derivatives are useful ligands with variable coordination. To identify the exact coordinating sites of complexes formed by β-ketoanilide derivatives and cupric cation, six β-ketoanilide ligands were synthesized and reacted with copper(Ⅱ) acetate, respectively. The yielding complexes were cultivated in various solvents and expected to form single crystals. Only the single crystal Cu(L6)2, a Cu(Ⅱ) complex of 2-benzoylacetanilide, was obtained and characterized by single crystal X-ray diffraction. The results showed that Cu(L6)2 crystallized into the monoclinic space group P2(1)/c with a=1.3064(7) nm, b=0.4822(3) nm, c=2.0140(10) nm, α=90.00º, β=106.079(9)º, γ=90.00º. Four oxygen atoms from two ligands coordinated a cupric cation and neither copper-carbon bond nor copper-nitrogen bond was found. The existence of non-classical intramolecular C-H…O hydrogen bonds, intermolecular N-H…O hydrogen bonds and π-π stacking were observed.

Key words: β-Ketoanilide, Copper(Ⅱ) complex, Crystal structure

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