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	Photoswitching of the third-order nonlinear optical properties of azobenzene-containing phthalocyanines based on reversible host-guest interactions
	Chen, Zihui ; Dong, Sida ; Zhong, Cheng ; Zhang, Zhi ; Niu, Lihong ; Li, Zhongyu ; Zhang, Fushi
	2010-10-12 ; 2010-10-12
关键词	Phthalocyanine Azobenzene Host-guest interaction Third-order optical nonlinearity Z-scan technique DRIVEN MOLECULAR SHUTTLE ORGANOMETALLIC COMPLEXES ORGANIC MATERIALS AGGREGATION ABSORPTION ROTAXANE FILMS Chemistry, Physical
中文摘要	Two water soluble azobenzene and phthalocyanine dyads with D-pi-A alignment were synthesized. It was found that both compounds showed very large molecular cubic hyperpolarizabilities which are at the order of 10(-30) esu as the result of their unique chemical structure. The azobenzene moieties of these compounds, upon alternating illumination of UV and visible light, could reversibly associate with alpha-CD to form inclusion complexes through host-guest interaction in aqueous media, resulting in apparent influences to the 3rd NLO properties of these compounds. This influence is especially significant for the phthalocyanine whose central metal atom is copper (II). The molecular cubic hyperpolarizability gamma of the inclusion complex for the copper phthalocyanine is 2.1 x 10(-30) esu. When the inclusion complex dissociated under the illumination of 365 nm light, gamma value increased to 4.2 x 10(-30) esu, which is a 100% enhancement. Taking account of the large molecular cubic hyperpolarizabilities of these compounds, the present materials are potential as ideal 3rd NLO photoswitching systems. (C) 2009 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80826]
专题	清华大学
推荐引用方式 GB/T 7714	Chen, Zihui,Dong, Sida,Zhong, Cheng,et al. Photoswitching of the third-order nonlinear optical properties of azobenzene-containing phthalocyanines based on reversible host-guest interactions[J],2010, 2010.
APA	Chen, Zihui.,Dong, Sida.,Zhong, Cheng.,Zhang, Zhi.,Niu, Lihong.,...&Zhang, Fushi.(2010).Photoswitching of the third-order nonlinear optical properties of azobenzene-containing phthalocyanines based on reversible host-guest interactions..
MLA	Chen, Zihui,et al."Photoswitching of the third-order nonlinear optical properties of azobenzene-containing phthalocyanines based on reversible host-guest interactions".(2010).

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