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Photochemical investigation of a photochromic diarylethene compound that can be used as a wide range actinometer

Ribeiro Santos, André ; Ballardini, Roberto ; Belser, Peter ; Gandolfi, Maria Teresa ; Mahadevan Iyer, Vijay ; Moggi, Luca

In: Photochemical & Photobiological Sciences, 2009, vol. 8, p. 1734-1742

The photochromic diarylethene derivative 1,2-bis(5-(4-ethynylphenyl)-2-methylthiophen-3-yl)perfluorocyclopentene (1) was submitted to photochemical, thermal stability and fatigue resistance studies in acetonitrile, also to evaluate its possible application as a new actinometer. This photochromic system covers a wide spectral absorption range, with intense bands in the UV and visible regions for...