Diarylethenes containing coumarin and thiophene substituents in the thiazole bridge and quinoline receptor fragments have been synthesized. 2-Chloroquinoline diarylethenes have afforded colored cyclic hexadiene forms under UV irradiation, which have undergone reverse isomerization when exposed to visible light. 2-Hydroxyquinoline diarylethenes have been found nonphotochromic. The ionochromic effects of interaction with fluoride anions as well as copper(II) and nickel(II) cations have been studied.
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