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Study on the Orientation of Benzodixanthene Analogue Having Alkyl Chain in Langmuir-Blodgett Film

 

作者: Tomohiro Watanabe,   Hiroo Nakahara,   Sumio Tokita,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 2000）
卷期: Volume 345, issue 1  

页码: 143-148

 

ISSN:1058-725X

 

年代: 2000

 

DOI:10.1080/10587250008023909

 

出版商: Taylor & Francis Group

 

关键词: Photochromism;Benzodixanthene;Langmuir-Blodgett film;orientation;polarized UV-VIS spectra;semi-empirical molecular orbital method

 

数据来源: Taylor

 

摘要:

Xantheno[1′, 9′ : 4, 5, 6]benzo[1, 2, 3-kl]N-(1-dodecyl-2-pyridynium)-acridine iodide (2a) was synthesized from 1, 5-dichloroanthraquinone in six steps. The polarized UV-VIS spectra of the LB film of (2a) on CaF2were compared with the transition moments of (2a) calculated by semi-empirical molecular orbital method to discuss the orientation of (2a) in the LB film. The plane of the skeleton structure of the polycondensed aromatic ring of (2a) on CaF2in the LB film was rather oblique, not parallel to the CaF2surface.

 

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