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New armed near-infrared two-photon organic chromophores bearing with o-hydroxy-phenyl-imino groups are presented in this work. These molecules are demonstrated to undergo internal molecular proton transfer in the excited state under irradiation by one-photon absorption and near-IR femtosecond laser two-photon absorption, respectively. The target chromophores show ‘naked eye’ fluorescence sensing to...
This article presents a comprehensive therotical investigation of excited state intramolecular proton transfer (ESIPT) for some newly-designed diphenylethylene derivatives containing 2-(2-hydroxy-phenyl)-benzotriazole moiety with various substituted groups. The calculation shows the structural parameters and Mulliken charges of phototautomers enol (E) and keto (K) of these compounds exhibit no or...
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