应用化学 ›› 1997, Vol. 0 ›› Issue (1): 21-24.

• 研究论文 • 上一篇    下一篇

八-4-(四氢糠氧基)双酞菁钕LB膜的电子吸收光谱和扫描隧道显微镜形貌分析

王岩, 李薇, 李晶, 陈文启, 席时权   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1996-05-21 修回日期:1996-07-23 出版日期:1997-02-10 发布日期:1997-02-10
  • 基金资助:
    国家自然科学基金

UV-Vis and STM Studies of LB Films of Octa-Tetrahydrofuryloxy Nd-Bisphthalocyanine

Wang Yan, Li Wei, Li Jing, Chen Wenqi, Xi Shiquan   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1996-05-21 Revised:1996-07-23 Published:1997-02-10 Online:1997-02-10

摘要: 测定了八-4-(四氢糠氧基)双酞菁钕在亚相水面上的π-A曲线,在石英和高取向热解石墨(HOPG)基底上制备了它的LB膜,解释了八-4-(四氢糠氧基)双酞菁钕的UV-Vis谱带。并采用扫描隧道显微镜方法观察了LB膜的形貌,发现在HOPG上双酞菁钕分子是随机分布并有多聚体形成而在HOPG上修饰一层硬脂酸后可得到均匀有序单分散的双酞菁钕分布。所有结果表明大环分子垂直于基底排列

关键词: 双酞菁钕, LB膜, 电子吸收光谱, 扫描隧道显微镜

Abstract: Surface pressure/monomolecular area(π-A)isotherm of octa-tetrahydrofuryloxy Nd-bisphthalocyanine monolayer on the water subphase has been investigated. LB films have been prepared and characterized using UV-Vis absorption spectroscopy. LB films on highly oriented pyrolytic graphite(HOPG)were investigated using STM. It can be seen from the micrograph that Nd-bisphthalocyanine molecules distributed randomly in multimers on HOPG, but uniformly and dispersively in an ordered form when a layer of stearic acid has been deposited on HOPGbefore LBpreparation. All results showed that Nd-bisphthalo-cyanine macrocycles oriented perpendicular to the substrate.

Key words: Nd-bisphthalocyanine, LB film, UV-Vis absorption spectroscopy, scanning tunneling microscope