We report herein the synthesis and characterization of a phosphorus-containing cyclic azobenzene as a new photoswitchable scaffold. This backbone reveals high bidirectional photoswitching yields and high thermal stability for both isomers, with > 90 days at 60 °C. Both - and -isomers have been characterized by UV-vis spectroscopy and X-ray crystallography.

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http://dx.doi.org/10.1021/acs.joc.3c02450DOI Listing

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