CRYSTAL STRUCTURE OF AN END–ON AZIDO–BRIDGED POLYMERIC ZINC(II) COMPLEX
S.-S. Qian1, Z.-L. You2, H.-L. Zhu1
1Shandong University of Technology, Shandong, P. R. China
2Liaoning Normal University, Dalian, P. R. China
Keywords: Schiff base, zinc, polymeric complex, crystal structure, azide
Abstract
A new end-on azido-bridged polymeric zinc(II) complex [Zn2ClL(μ1,1-N3)]n , where L is the dianionic form of N,N '-bis(5-fluoro-2-hydroxybenzylidene)-2-hydroxy-1,3-propanediamine, is prepared and structurally characterized by elemental analysis and single crystal X-ray diffraction. The complex crystallizes in the monoclinic space group P21/c , with unit cell dimensions a = 9.194(1) Å, b = 22.356(2) Å, c = 9.598(1) Å, β = 95.869(3)°, V = 1962.5(4) Å3, Z = 4, R1 = 0.0691, and wR2 = 0.1642. The inner Zn atom of the [Zn2ClL] unit is coordinated by the imino N and phenolate O atoms of L and one azido N atom, forming a square pyramidal geometry. The outer Zn atom of the [Zn2ClL] unit is coordinated by two phenolate O of L, one Cl ligand, and one N atom of the bridging azide group, forming a tetrahedral geometry. The Zn⋯Zn distance in the [Zn2ClL] unit is 3.072(2) Å. The [Zn2ClL] units are linked through end-on azido bridges, forming 1D chains running along the c axis.
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