Research Article
Theoretical and Experimental Study of New Photochromic Bis-Spiropyrans with Hydroxyethyl and Carboxyethyl Substituents
Table 3
Spectral and kinetic properties of the bis-spiropyrans (2a–c) ( are parameters of the absorption spectra before irradiation (i.e., characteristics of the spirocyclic isomers); is positions of the longwave maxima generated under irradiation; is lifetime of the photoinduced forms).
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