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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (6): 568-572. 上一篇    下一篇

研究论文

稀土配合物Et~2NC~6H~4CH=CHC~5H~4NC~1~6H~3~3Ln(TTA)~4(Ln=La,Nd,Dy,Yb)的合成、表征与成膜性能

蒋维;王科志;黄春辉;徐光宪;徐灵戈;黎甜楷   

  1. 北京大学稀土材料化学及应用国家重点实验室;中国科学院感光化学研究所
  • 发布日期:1995-06-15

Synthesis, characterization and langmuir film formation properties of the complexes Et~2NC~6H~4CH=CHC~5H~4NC~1~6H~3~3Ln(TTA)~4(Ln=La,Nd,Dy,Yb)

JIANG WEI;WANG KEZHI;HUANG CHUNHUI;XU GUANGXIAN;XU LINGGE;LI TIANKAI   

  • Published:1995-06-15

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合成了四(α-噻吩甲酰三氟丙酮)合稀土(La,Nd,Dy,Yb)酸(E)-N-十六烷基-4-[2-(4-二乙氨基苯基)乙烯基]吡啶四个新的稀土配合物。用元素分析、紫外可见光谱、红外光谱、小角X射线衍射、差热-热重分析和摩尔电导对配合物进行了表征。研究了它们的表面压-面积(π-A)等温线行为。研究结果表明它们具有良好的成膜(Langmuir)性能, La, Nd, Dy和Yb配合物零压分子平均截面积A~π~→~0分别为1.94,1.93,1,73和1.85nm^2/分子。

关键词: 合成, 表征, 成膜, 国家攀登计划基金, 稀土络合位

The title complexes have been synthesized and characterized by UV, IR, low angle X-ray diffractometry, TG-DTA analysis and mole conductometric analysis. The surface pressure-area isotherm (π-A) behaviours of these complexes were investigated. The zero-pressure molecular area obtained for the complexes of La, Nd, Dy and Yb are 1.94, 1.93, 1.73 and 1.85nm^2 permolecule respectively, which is much larger than the value of 0.55nm^2 calculated according to structural data for Eu(TTA)~4^-. This indicates that the anion and cation of the complex may take a "shoulder" to "shoulder" arrangement on the substrate, and the angle between the alkyl chain and substrate may be very small.

Key words: SYNTHESIS, CHARACTERIZATION, COATING

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