Development of photochromic fused 2<i>H</i>-naphthopyrans with promising thermal fading rates
Taishan Yan, Xi Tu, Zhiqiang Xi, Siyi Du, Jie Han, Bin Zhao, Zhengjie He
Abstract
The effect of electronic and steric factors on the thermal fading rate (t 1/2 ) of fused 2 H -naphthopyrans has been rationalized at the transition state level for the first time. The t 1/2 can be tuned to 5 seconds by rational molecular design.
Topics & Concepts
FadingPhotochromismSteric effectsMaterials scienceThermalPhotochemistryEngineering physicsNanotechnologyThermodynamicsOrganic chemistryTelecommunicationsComputer sciencePhysicsChemistryDecoding methodsPhotochromic and Fluorescence ChemistryPorphyrin and Phthalocyanine ChemistryPhotoreceptor and optogenetics research