Optical modulation of supramolecular assembly of amphiphilic photochromic diarylethene: from nanofiber to nanosphere
作者:Xinhong Zhou、Yulong Duan、Shihai Yan、Zhihong Liu、Chuanjian Zhang、Lishan Yao、Guanglei Cui
DOI:10.1039/c1cc11385b
日期:——
A diarylethene derivative with histamines as side chains was synthesized and the morphology of self-assembled supramolecular architecture can be tuned from nanofiber to nanosphere by photo irradiation. The theoretical calculation and model of the self-assembled nanostructure are presented to illuminate the possible self-assembly mechanism.
The photochromic diarylethene, 1,2-bis(2-methyl-5-(2,2′-dicyanovinyl)-thien-3-yl)perfluorocyclopentene (1a), was synthesized by a novel method. Two kinds of single crystals of the compound were obtained depending on the different recrystallization conditions and their structures were determined by X-ray crystallographic analysis. Allomorphism of the photochromic diarylethene was discovered. The compound
Gilat, Sylvain L.; Kawai, Stephen H.; Lehn, Jean-Marie, Chemistry - A European Journal, 1995, vol. 1, # 5, p. 275 - 284
作者:Gilat, Sylvain L.、Kawai, Stephen H.、Lehn, Jean-Marie
DOI:——
日期:——
Light-triggered electrical and optical switching devices
作者:Sylvain L. Gilat、Stephen H. Kawai、Jean-Marie Lehn
DOI:10.1039/c39930001439
日期:——
The functional photoswitchable systems 1–3 and 12–15 display pronounced photochromic properties; the bis-pyridinium derivative 1 represents a prototype of a switched molecular wire which may be converted from an open unconjugated form to a closed electron-conducting state.
A helical nanostructure can be obtained by self-assembly of a diarylethene derivative that bears two malononitrile substitutes in a tetrahydrofuran/water medium. It is revealed that the helical nanostructure changed from helical nanofiber to helical nanotube when the diarylethene monomer changed from the open-ring isomer to the closed-ring isomer upon irradiation with 365 nm ultraviolet light, meanwhile