Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (22): 2032-2036. Previous Articles     Next Articles

Original Articles

Eu(C10H9N2O4)(C10H8N2O4)(H2O)3]•0.5bipy•3H2O配合物的合成、晶体结构及荧光性质

武望婷,*,胡怀明,王尧宇,史启祯   

  1. (西北大学化学系 陕西省物理无机化学重点实验室 西安 710069)
  • 投稿日期:2005-04-13 修回日期:2005-08-01 发布日期:2010-12-10
  • 通讯作者: 何水样

Synthesis, Crystal Structure and Fluorescence Property of [Eu(C10H9N2O4)(C10H8N2O4)(H2O)3]•0.5bipy•3H2O

WU Wang-Ting, HE Shui-Yang*, HU Huai-Ming, WANG Yao-Yu, SHI Qi-Zhen   

  1. (Shaanxi Key Laboratory of Physico-inorganic Chemistry, Department of Chemistry, Northwest University, Xi'an 710069)
  • Received:2005-04-13 Revised:2005-08-01 Published:2010-12-10
  • Contact: HE Shui-Yang

Eu(NO3)3•4H2O has reacted with 2-oxopropionic acid salicyloyl hydrazone (C10H10N2O4) and 2,2'-bipyridyl (C10H8N2, bipy) to obtain a yellow prismatic crystal of the complex [Eu(C10H9N2O4)- (C10H8N2O4)(H2O)3]•0.5bipy•3H2O for the first time in H2O-C2H5OH mixed solvent. The compound crystallized in the triclinic system with space group P-1 and parameters a=0.93392(16) nm, b=1.3100(2) nm, c=1.3895(2) nm, α=97.205(3)°, β=105.411(2)°, γ=106.364(2)°, V=15.35(2) nm3, Z=2, μ=2.118 mm-1, Dc=1.686 Mg/m3, F(000)=786, R=0.0116, wR=0.0507 and GOF=0.995. In the structure, europium atom is 9-coordinated by carboxyl O and acyl O atoms and azomethine N atom of two tridentate C10H10N2O4 ligands negative univalent and bivalent and three water molecules to form two stable five-membered rings sharing one side in ketone form. The coordination polyhedron around Eu3+ was described as a single cap square antiprism. In the crystal cell, there are one free bipy and three water molecules connected with 2-oxopropionic acid salicyloyl hydrazone and coordinated water molecule by hydrogen bonds. The complex formed a three-dimensional super molecule in space through hydrogen bonds. The test of luminescence performance of the complex has shown it has good fluorescence property.

Key words: europium(III) complex, 2-oxopropionic acid salicyloyl hydrazone, 2,2-bipyridyl, crystal structure, fluorescence