高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (2): 172.

• 论文 • 上一篇    下一篇

三(3-苯基-4-苯甲酰基异噁唑酮-5)-乙醇-水合铕三元配合物的合成、表征及晶体结构

魏兆杰1, 李标国1, 黄春辉1, HUANG Chun-Hui2, S. Umetani2   

  1. 1. 北京大学稀土材料化学及应用国家重点实验室, 北京 100871;
    2. 日本京都大学化学研究所
  • 收稿日期:1994-07-28 修回日期:1994-10-22 出版日期:1995-02-24 发布日期:1995-02-24
  • 通讯作者: 黄春辉
  • 作者简介:魏兆杰,男,28岁,硕士.
  • 基金资助:

    国家科学技术委员会攀登计划资助

Synthesis,Characterization and Crystal Structure Studies on a Mixed Ligand Complex of Aquatris(3-phenyl-4-benzoyl-5-isoxazolone)(Ethanol) Europium Monohydrate[Eu(PBI)3(C2H5OH)(H2O)]·H2O

WEI Zhao-Jie1, LI Biao-Guo1, HUANG Chun-Hui1, S. Umetani2, M. Matsui2   

  1. 1. State Key Laboratory of Rare Earth Material Chemistry and Applications, Peking University, Beijing, 100871;
    2. Institute for Chemical Research, Kyoto University, Kyoto 611, Japan
  • Received:1994-07-28 Revised:1994-10-22 Online:1995-02-24 Published:1995-02-24

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被引次数

1

摘要： 合成了三(3-苯基-4-苯甲酰基异唑酮-5)-乙醇-水合铕的配合物.有关鉴定和元素分析结果表明:该配合物的分子式为[Eu(PBI)3(C2H5OH)(H2O)]·H2O,其中3-苯基-4-苯甲酰基异唑酮-5简记为HPBI,是一种新型高酸度的β-双酮.用X射线单晶衍射法测定了[Eu(PBI)3(C2H5OH)(H2O)]·H2O的晶体结构,结果表明,该晶体属单斜晶系,P21/a空间群,晶胞参数:a=1.5586(9)nm,b=2.1297(7)nm,c=1.604(1)nm,β=117.97(5)°,V=4.703(9)nm3,Z=4.中心离子铕为八配位,其配位多面体为畸变的双帽三棱柱.配位的8个氧原子分别来自3个PBI配体中的6个氧、1个溶剂化乙醇分子中的氧和1个水分子中的氧,Eu-O配位键平均键长0.2391(4)nm.晶体结构中还存在1个未配位的水分子.该水分子、配位水分子、乙醇分子与配体PBI中的N原子之间均存在强的氢键作用.同一PBI基团内配位氧之间的平均距离为0.2808nm.

关键词: 铕配合物, 晶体结构, 异唑酮

Abstract: The[Eu(PBI)3(C2H5OH)(H2O)]·H2O was systhesized by reacting Eu2O3with highly acidic β-diketone 3-phenyl-4-benzoyl-5-isoxazolone(HPBI) in C2H5OH under heating.The X-ray single crystal structure analysis shows that the crystal is monoclinic with space group P21/a and the unit cell parameters are as follows:a=1.5586(9) nm,b=2.1297(7) nm,c=1.604(1) nm,β=117.97(5)°,V=4.703(9) nm3,Z=4.The central ion Eu3+is eight coordinated by six oxygen atoms from three β-diketone,one from water and one from C2H5OH molecule.The coordination polyhedron takes bicapped triangular prism arrangement.The Eu-Oaverage bond length is 0.2391(4) nm.The average distance of O-Owithin a β-diketone is 0.2808 nm which is larger than those for other β-diketones.

Key words: Europuim complex, Crystal structure, Isoxazolone

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