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. 2019 Sep 17;10:4232. doi: 10.1038/s41467-019-12302-6

Fig. 1.

Fig. 1

Molecular design of the visible-light photochromic DAE-o-DT and its working mechanism. a Illustration of the working mechanism for the intramolecular TTET-induced visible-light photochromism with narrow ΔEST sensitizer. b Structures of the investigated building blocks and the photoswitching with visible lights in both directions