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化学学报
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化学学报 ›› 1996, Vol. 54 ›› Issue (3): 266-270. 上一篇    下一篇

研究论文

双吡唑啉酮(BPMPHD)和半菁与镧、镝的两亲性配合物的合成、表征与Langmuir-Blodgett膜的二阶非线性光学性质

王科志;黄春辉;徐光宪;赵新生;夏小华;谢小明;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;北京大学化学与分子工程学院;中国科学院感光化学研究所
  • 发布日期:1996-03-15

Synthesis, characterization and second-harmonic generation from LB film of lanthanum-dysprosium coordinated compounds with 1,6-bis-(1'-phenyl-3'- methyl-5'-pyrazolone-4')hexanedione [1,5] and hemicyanine

WANG KEZHI;HUANG CHUNHUI;XU GUANGXIAN;ZHAO XINSHENG;XIA XIAOHUA;XIE XIAOMING;XU LINGGE;LI TIANKAI   

  • Published:1996-03-15

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合成了[1,6-双(1'-苯基-3'-甲基-5'-吡唑啉酮-4']-己二酮[1,6]合稀土(La，Dy)酸(E)-N-十六烷基-4-(2,4'-二甲氨基苯基)乙烯基吡啶两个新的稀土配合物。用元素分析、紫外可见光谱、红外光谱、差热热重谱、X射线粉末衍射、核磁共振谱和摩尔电导测量对配合物进行了表征。空气-水(18℃，pH5.4)界面上的表面压-面积(π-A)等温线研究表明，两配合物的Langmuir成膜性明显优于半菁溴化物和碘化物。二次谐波发生(SHG)实验测得镝配合物的二阶分子超极化率β为4.8×10^-^4^8C m^3 V^-^2，较半菁碘化物大约3.4倍。

关键词: 紫外分光光度法, 红外分光光度法, 元素分析, 核磁共振谱法, 稀土金属络合物, 差热分析, 镧络合物, 镝络合物, Ｘ射线粉末衍射, 乙烯基吡啶

Two novel rare earth coordination compounds, (E)-N-hexadecyl-4-(2-4'-dimethylaminophenyl) ethenyl pyridinium 1,6-bis-(1'-phenyl-3'-methyl-5'-pyrazolone- 4')hexanedione [1,6] lanthanum-dysprosium (Ⅲ) have been synthesized and characterized by elemental analysis. UV-Vis, IR, ^1H NMR, TG-DTA analysis, X-ray power diffraction and molar conductivity. The comparison of the surface pressure-area isothems of the comlexes with those of hemicyanine bromide and iodide is made. The Langmuir film-forming properties of the metal complexes are superior to the hemicyanine bromide and iodide. Second-harmonic generation from monolayer film of the dysprosium complex shows that the second-order molecular hyperpolarizability to be 4.8×10^-^4^8C m^3 V^-^2.

Key words: ULTRAVIOLET SPECTROPHOTOMETRY, INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, NMR SPECTROMETRY, RARE EARTH METAL COMPLEX, DIFFERENTIAL THERMAL ANALYSIS, LANTHANUM COMPLEX, DYSPROSIUM COMPLEX

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