Kinetic studies on visible-light-switchable photochromic fluorophores based on diarylethenes†
Abstract
We present three recently developed photochromic fluorophores that are based on diarylethenes with elongated conjugated π-systems. The diarylethenes 1 and 3 can be switched from their open to their closed form with visible light. The diarylethenes 1 and 2 are covalently coupled to a standard rhodamine B-based fluorophore and act as photoswitchable resonance energy acceptors. By controlling their switching state, the fluorescence intensity of the
- This article is part of the themed collection: In honour of the contribution of Japanese scientists to photochemistry