Diarylethenes, optical properties

Nishi, H. and Kobatake, S. (2008) Photochromism and optical property of gold nanoparticles covered with low-polydispersity diarylethene polymers. Macromolecuks, 41, 3995-4002. 

The photochemistry and optical properties of three diarylethenes derived from benzoth-iophene have been reported. A photoactivated reduction of aromatic disulfides in the... 

S. L. Gilat, S. H. Kawai, and J.-M. Lehn, Light-triggered molecular devices photochemical switching of optical and electrochemical properties in molecular wire-type diarylethene species, Chem. Eur. J1, 275-284 (1995). 

Photochromism is the reversible, light-driven conversion of a molecule between two forms with differing absorption properties. Molecular examples are numerous and include fulgides, dihydropyridazines, spiropyrans, spirooxazines and diarylethenes. The reorganisation of the electrons involved in the transformation means that photochromism is often accompanied by the modulation of other attributes such as fluorescence intensity, redox properties, magnetic interactions and non-linear optical... 

Dithienylethene and derivatives. l,2-Di(2,5-dimethylthien-3-yl)cyclopentene and its derivatives are generally termed dithienylethenes or diarylethenes. Their photochromic properties with the reversible cyclization/cycloreversion are fascinating for chemist and material scientists and have been widely applied to photoswitch, optical memory, etc. in molecular devices and in nanotechnology. Therefore, many researchers are seeking possibilities to move the frontiers. In the last two years many novel dithienylethenes have been prepared and their photochromie properties were investigated. 

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