Electronic transitions in a classical antiferroelectric banana-shaped compound

摘要：

The electronic transitions in a classical banana-shaped liquid crystal 1,3-phenylene-bis 4-(4-octylphenylimino) methyl benzoate have been investigated by measuring its optical absorption spectra in dilute solutions of ethyl alcohol and by calculating its electronic structures with extended Hückel tight binding program. The banana-shaped compound shows strong absorptions at 240, 280, 350 nm, respectively. On the basis of the calculated electronic structures, the three strong absorptions can be assigned to the π→π*, n→π*, and n→n* electronic transitions in this banana-shaped compound.

关键词： Banana-shaped liquid crystal Electronic structures Electronic transition Absorption Huckel tight binding method

作者: Bao-gai Zhai Yuan Ming Huang

作者单位: Modem Educational Technology Center, Yunnan Normal University, Yunnan 650092, China College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China

会议类型: 国际会议

会议名称: 2009 International Symposium on Liquid Crystal Science and Technology(2009国际液晶科技研讨会)

会议地点: 昆明

会议语种:英文

页码: 317-321

在线出版日期: 2009-08-02（万方平台首次上网日期，不代表论文的发表时间）