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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (3): 214-218. 上一篇    下一篇

研究论文

四(十六烷硫基)四硫富瓦烯/硬脂酸混合LB膜的结构研究

肖玉方;姚钟麒;金道森   

  1. 中国科学院兰州化学物理研究所
  • 发布日期:1995-03-15

Study on structure of the mixed langnuir-blodgett film based on tetrahexadecylthiotetrathiafulvalene/stearic acid

XIAO YUFANG;YAO ZHONGQI;JIN DAOSEN   

  • Published:1995-03-15

PDF

510

被引次数

11

我们考察了四(十六烷硫基)四硫富瓦烯/硬脂酸(THT-TTF:SA=1:n)在气-液界面的聚集状态及在LB膜中的排列,当n=1时,THT-TTF分子在气-液界面形成了双分子膜;当n>6时,THT-TTF分子形成了单分子膜;1

关键词: 紫外分光光度法, Ｘ射线衍射分析, 硬脂酸, Ｌ-Ｂ膜, 四硫富瓦烯, 四十六烷硫基四硫富瓦烯, 偏振红外光谱, 气液界面

Mol. assemblies with different molar ratios 1/n of tetrahexadecylthiotetrathiafulvalene (THT-TTF) and stearic acid(SA) on water surface are described. When n = 1, THT-TTF mols. form bilayers. Mol. reorganization occurs with increasing in SA molar no. The THT-TTF mols. exist in the form of monolayer when n?. UV-vis spectra show the Y-type multilayered LB films from n = 1 ~ 6. The electronic absorption spectra exhibit blue-shift with increasing in n molar no. This result is explained by the rearrangement of THT-TTF mols. on water surface with increasing in n molar no. The structure and mol. orientation are characterized by X-ray diffraction and polarized FT-IR techniques. The distance value (D) of LB film was determine to be 5.90nm, the tilting angles of C16H33 and TTF axis are 53.6?and 23.6? resp. The possible arrangement of THT-TTF in LB film is assumed.

Key words: ULTRAVIOLET SPECTROPHOTOMETRY, X-RAY DIFFRACTION ANALYSIS, STEARIC ACID, L-B MEMBRANE, TETRATHIAFULVALENE

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