高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (4): 502.

• 论文 • 上一篇    下一篇

(C26H40N2O4)[Ln(NO3)5H2O]的合成及其铕缔合物的晶体结构

陈朝晖, 金林培, 郭建权   

  1. 北京师范大学化学系, 北京, 100875
  • 收稿日期:1997-03-12 出版日期:1998-04-24 发布日期:1998-04-24
  • 通讯作者: 金林培
  • 作者简介:陈朝晖,男,26岁,硕士.
  • 基金资助:

    国家攀登计划项目;国家自然科学基金

Synthesis of (C26 H40 N2O4)[Ln(NO3)5H2O] and Crystal Structure of (C26 H40 N2O4)[Eu(NO3)5H2O]

CHEN Zhao-Hui, JIN Lin-Pei, GUO Jian-Quan   

  1. Department of Chemistry, Beijing Normal University, Beijing, 100875
  • Received:1997-03-12 Online:1998-04-24 Published:1998-04-24

PDF (PC)

摘要： 合成了4个新型的稀土化合物(C26H40N2O4)[Ln(NO3)5H2O](Ln=Pr,Nd,Sm,Eu),采用元素分析和红外光谱表征,用四圆衍射仪测定了其中(C26H40N2O4)[Eu(NO3)5H2O]的晶体结构,属三斜晶系,P1空间群,晶胞参数:α=0.9100(4)nm,b=1.3560(3)nm,c=1.6463(4)nm;α=68.62(2)°,β=74.84(3)°,γ=87.50(2)°;Z=2.中心铕离子由5个硝酸根的10个氧原子和1个水分子中的氧原子配位,配位数是11.1,7,10,16-四氧-4,13-二氮杂-N,N'-二苄基环十八烷(N,N'-二苄基穴醚(2,2))未参与配位.

关键词: 稀土, 硝酸根配阴离子, N, N&prime, －二苄基穴醚(2, 2)

Abstract: Four novel rare earth compounds H2L[Ln(NO3)5H2O](Ln=Pr,Nd,Sm,Eu; L= C26 H38 N2O4 : 1,7,10,16-tetraoxa-4,13-diaza-N, N ′-dibenzyl-cyclooctadecane) were synthesized and characterized by elemental analysis and IR. The crystal structure of C26 H40 N2O4[Eu·(NO3)5H2O] was determined by X-ray analysis. The crystal belongs to triclinic, P1 space group with cell dimensions: a =0.9100(4) nm, b =1.3560(3) nm, c =1.6463(4) nm; α =68.62(2)°, β =74.84(3)°, γ =87.50 (2)°; Z =2. The central europium ion is bonded to ten oxygen atoms from the five nitrate groups and one oxygen atom from a water molecule. Coordination number is 11. 1,7,10,16-Tetraoxa-4,13-diaza-N, N ′-dibenzyl cyclo octadecane is not bonded to the europium ion.

Key words: Rare earths, Nitrato complex anion, N,N ′-dibenzyl cryptand(2,2)

中图分类号: 

TrendMD: