BINUCLEAR COMPLEX [Cu(bappz)(µ-NC)Ni(CN)3]·H2O (bappz = 1,4–BIS(3–AMINOPROPYL)PIPERAZINE)
Z. Smekal1, H. Adams2
1Institute of Chemical Technology, Prague, Czech Republic
2University of Sheffield, Sheffield, U.K
Keywords: copper(II) complexes, tetracyanonickelates(II), cyano-bridged complexes, X-ray structure analysis
Abstract
The novel bimetallic compound [Cu(bappz)(µ-NC)Ni(CN)
3]×H
2O (bappz = 1,4-bis(3-aminopropyl)piperazine) is prepared by the reaction of Cu(NO
3)
2×3H
2O, bappz, and K
2[Ni(CN)
4] in water. The complex is characterized by IR spectroscopy and single crystal X-ray diffraction. The neutral [Cu(bappz)(µ-NC)Ni(CN)
3] complex assumes a cyanide-bridged binuclear structure in which the nickel(II) ion is four-coordinated by carbon atoms from four cyano groups (one of them forms a bridge) in a square planar arrangement, whereas the copper(II) ion is five-coordinated by four bappz nitrogen and one cyanide nitrogen atoms in a distorted square-pyramidal geometry.
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