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Citation: YAN Yun, GUO Su, XIONG Wei, HUANG Jian-Βin, LI Zi-Chen, MA Ji-Ming. Molecular Arrangement and Recognition of a New Bolaform Cinnamic Acid Derivative in LB Films[J]. Acta Physico-Chimica Sinica, ;2005, 21(05): 550-555. doi: 10.3866/PKU.WHXB20050518 shu

Molecular Arrangement and Recognition of a New Bolaform Cinnamic Acid Derivative in LB Films

1.
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871

Received Date: 27 December 2004
Available Online: 15 May 2005

A bolaamphiphile containing cinnamic acid moiety, [4-(10-hydroxydecanyloxy)-10-hydroxydecanylcinnamate, abbreviated HDC], was synthesized and the LB films of HDC were studied. It was found from the results of π－A isotherms that multilayers of HDC were formed at the air/water interface. The photoreaction of HDC in LB films induced by UV light was investigated with UV and IR measurements. Photodimerization also took place in the mixed LB films of HDC and 1,16-hexadecanediol. The spectra results showed that the HDC molecules assembled orderly due to the separated recognition of π-π interaction and the zigzag stacking of methylene groups. XRD studies indicated that bilayers formed in the LB films with a tilt angle of 58.8° and 53.2° before and after UV irradiation, respectively. A packing model of HDC was also proposed.
- Bolaform cinnamic acid derivative; Langmuir-Blodgett films; Photodimerization; Molecular arrangement; Molecular recognition
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