本文以苏氨酸,3,5-二溴水杨醛以及醋酸铜为原料合成了新型配合物[Cu2(C6H2Cl2OC=N-C3H6COO)2(H2O)2]·3H2O,并对其晶体结构经元素分析,红外光谱及X射线单晶衍射表征.结果表明:该晶体属单斜晶体结构,晶胞参数分别为:a=0.6985(2) nm, b=1.0789(2) nm, c=1.9639(3) nm, β=92.182(3) °, Mr=797.34, V=1.4789(6) nm3 , Z=2, Dc=1.790 g/cm3, μ(MoKa) =1.867 mm-1, F(000)=808, R=0.0321, wR= 0.0566.Cu(II)与一个N原子,两个O原子以及一个水分子构成三齿链状席夫碱.不对称单元结构包含两个配合物分子及三个由氢键链接的水分子.
[Cu2L2(H2O)2]·3H2O(H2L=2-[(3,5-Dichloro-2-hydroxy-benzylidene)-amino]-butyricacid) was synthesized using threonine, 3,5-Dichloro-salicylaldehyde and copper acetate as raw materials. Elemental analysis, IR spectra, and X-ray single-crystal diffraction were carried out to determine the composition and crystal structure. The results indicate that the crystal structure belongs to monoclinic system, space group P2/1 with a=0.6985(2) nm, b=1.0789(2) nm, c=1.9639(3) nm, β=92.182(3)°, Mr=797.34, V=1.4789(6) nm3 , Z=2, Dc=1.790 g/cm3 , μ(MoKα)=1.867 mm-1, F(000)=808, the final R=0.0321 and wR=0.0566 for 7629. The Cu (II) atom is coordinated by one N atom, two O atoms of tridentate schiff base ligands and one water molecule, forming square geometry. The asymmetric unit comprises two Cu(II) L(H2O) and three water molecules. The water molecules are linked by hydrogen bonds.
参考文献
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