Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Hydrothermal Synthesis, Crystal Structure and EPR Property of Tetranuclear Copper(II) Cluster [Cu4OCl6(C14H12N2)4]

  • Jian, Fang-Fang (New Materials & Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology) ;
  • Zhao, Pu-Su (Materials Chemistry Laboratory, Nanjing University of Science and Technology) ;
  • Wang, Huan-Xiang (New Materials & Function Coordination Chemistry laboratory, Qingdao University of Science and Technology) ;
  • Lu, Lu-De (Materials Chemistry Laboratory, Nanjing University of Science and Technology)
  • Published : 2004.05.20
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Abstract

The tetranuclear copper(II) cluster compound $[Cu_4OCl_6(C_{14}H_{12}N_2)_4]$ has been synthesized by hydrothermal reaction and studied by X-ray diffraction. The four copper(II) atoms locate four capsheaves of a tetrahedral skeletal structure and a oxygen atom as interstitial atom occupies the center position of the same tetrahedron, and each edge of the Cu-Cu tetrahedron is bridged by one ${\mu}_2$-Cl anion. The copper atom possesses slightly distorted trigonal bipyramidal geometry with three ${\mu}_2$-Cl atoms in equatorial position and the interstitial O atom and one N atom from 3-benzyl-benzimidazole ligand occupying axial position. The Cu-Cu distances are in the range of 3.0986-3.1162 ${\AA}$. The EPR spectrum suggested that the copper(II) ground state $d_{x2-y2}$ and the coordination geometry was trigonal bipyramidal.

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References

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