Fabricating and Modulating Robust Multi-PhotoaddressableSystems with the Derivatives of Diarylethylene and Donor-Acceptor Stenhouse Adducts

Multi-photoaddressable systems (MPSs) belong to complex systems, whichare comprised of more than one photoswitching molecule and can respond to differentwavelengths of light simultaneously. While MPSs have been extensively applied in variousfields, there are also some challenges, such as the deficiency of the wavelength-selectivecontrol and the interference from the poor thermodynamic stability of used photoswitchingmolecules. Herein, we reported two robust MPSs (MPS1/2) consisting of diarylethylenederivative (DAE) and different donor-acceptor Stenhouse adducts (DASAs), in which bothopened and closed forms of DAE and opened forms of DASAs are thermodynamically stable.MPS1/2 enable fully reversible cyclic photoswitching with improved thermal interferenceresistance. Moreover, MPS2 also shows a favorable property in PMMAfilms and has beenapplied in multicolor display. It is expected that the prepared MPSs could be used in morefields such as information storage and reading and encoding light.