CHARACTERIZATION AND CRYSTAL STRUCTURE OF A NOVEL TETRANUCLEAR ZINC(II) COMPLEX DERIVED FROM N,N'-BIS(2-HYDROXY-5-METHOXYBENZYLIDENE)PROPANE-1,3-DIAMINE
G.-H. Sheng1, X.-S. Cheng2, Z.-L. You2, H.-L. Zhu1
1Shandong University of Technology, Shandong, P. R. China
2Liaoning Normal University, Liaoning, P. R. China
Keywords: Schiff base, zinc complex, tetranuclear complex, crystal structure
Abstract
A novel tetranuclear zinc(II) complex [Zn
4Br
4L
2(H
2L)], where L and H
2L are the dianionic and zwitterionic forms of
N,
N'-bis(2-hydroxy-5-methoxybenzylidene)propane-1,3-diamine, is prepared and structurally characterized by elemental analysis, IR spectrum, and single crystal X-ray crystallography. The complex crystallizes in the monoclinic space group
C2/
c, with unit cell dimensions
a = 38.338(2) Å,
b = 10.5662(5) Å,
c = 17.4607(8) Å, β = 113.767(2)°,
V = 6473.3(6) Å
3,
Z = 4,
R
1 = 0.0686, and
wR
2 = 0.1752. The inner Zn atoms are five-coordinated in a square pyramidal geometry, and the outer Zn atoms are four-coordinated in a tetrahedral geometry. The intramolecular Zn⋯Zn distance is 3.103(1) Å.
DOI: 10.1134/S0022476615010291
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