Stepwise Excited-state Double Proton Transfer and Fluorescence Decay Analysis.

ABSTRACT: This work considers excited state intramolecular proton transfers (ESIPT) occurred in multiple hydroxyl-containing compounds with one proton transfer site in the normal form. If several hydroxyl groups are located close to each other in a molecule, then the ESIPT process can lead to the next one. A proton donor site in the first ESIPT will be a proton acceptor during the second reaction. Therefore, a number of consecutive excited state proton transfers can occur. This work deals with the case of two successive proton transfers occurred in the molecular system. Such process is called as a stepwise excited state intramolecular double proton transfer (stepwise ESIDPT). It leads to the formation of two molecular tautomers. Therefore, fluorescence of such compounds can contain different emissio

SUBMITTER: Wroblewski T 

PROVIDER: S-EPMC9892138 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature