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Citation: Wang Yan, Li Wei, Li Jing, Chen Wenqi, Xi Shiquan. UV-Vis and STM Studies of LB Films of Octa Tetrahydrofuryloxy Nd-Bisphthalocyanine[J]. Chinese Journal of Applied Chemistry, ;1997, 14(1): 21-24. shu

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

1.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 21 May 1996
Available Online: 23 July 1996
Fund Project:

Surface pressure/monomolecular area (c-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 HOPG before LB preparation. All results showed that Nd-bisphthalocyanine macrocycles oriented perpendicular to the substrate.
- Nd-bisphthalocyanine,
- LB film,
- UV Vis absorption spectroscopy,
- scanning tunneling microscope
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