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Synthesis and Crystal Structure of Bis{2-bromo- 4-chloro-6-[(2-isopropylammonioethylimino)- methyl]phenolato}bisthiocyanatozinc(Ⅱ)
作者姓名:王凤武  魏亦军  朱其永
作者单位:Department of Chemistry Huainan Normal College,Department of Chemistry,Huainan Normal College,Department of Chemistry,Huainan Normal College,Huainan 232001,China,Huainan 232001,China,Huainan 232001,China
基金项目:the Natural Science Foundation of Anhui Provincial Universities (No. 2005KJ019ZD)
摘    要:A Schiff base zinc(Ⅱ) complex [Zn(C12H16BrClN2O)2(NCS)2] was prepared and characterized by elemental analysis,IR and single-crystal X-ray diffraction. The crystal belongs to the triclinic system,space group P1 with a=8.414(1),b=9.124(1),c=22.212(3),α=79.177(2),β=86.296(2),γ=89.899(2)o,V=1671.3(4)3,Z=2,Dc=1.631 g/cm3,Mr=820.79,λ(MoKα)= 0.71073,μ=3.444 mm-1,F(000)=824,R=0.0646 and wR=0.1179. A total of 7371 unique reflections were collected,of which 3904 with I > 2σ(I) were observed. The complex crystallizes with two half-molecules per asymmetric unit and each mononuclear molecule is centrosymmetric. The Zn atom lying at the inversion centre is six-coordinated in a slightly distorted octahedral geometry by two phenolate O atoms and two imine N atoms from two Schiff base ligands,as well as two N atoms from two thiocyanate anions. In the crystal structure,the combination of π-π stacking interactions and intermolecular hydrogen bonds (N–H…Br,N–H…O,N–H…N,C–H…O,C–H…S and C–H…Cl) leads to a three-dimensional network.

关 键 词:锌络合物 晶体结构 氢键 化学结构
收稿时间:2007-01-23
修稿时间:2007-04-16
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