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One such pathway, Excited\u2010State Proton Transfer (ESPT), involves the tautomerization of the dye in its excited state, resulting in a new structure that exhibits distinct emission properties, such as a very large Stokes\u2032 shift or dual\u2010emission. Although the ESPT phenomenon is well\u2010explained theoretically, its experimental demonstration can be challenging due to the presence of numerous other phenomena that can yield similar experimental observations. In this review, we propose that an all\u2010encompassing methodology, integrating experimental findings, computational analyses, and a thorough evaluation of diverse mechanisms, is essential for verifying the occurrence of ESPT in luminescent dyes. Investigations have offered significant understanding of the elements impacting the ESPT process and the array of approaches that can be used to validate the existence of ESPT. These discoveries hold crucial ramifications for the advancement of molecular probes, sensors, and other applications that depend on ESPT as a detection mechanism.<\/jats:p>","DOI":"10.1002\/chem.202301540","type":"journal-article","created":{"date-parts":[[2023,7,14]],"date-time":"2023-07-14T14:49:37Z","timestamp":1689346177000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Excited\u2010State Proton Transfer in Luminescent Dyes: From Theoretical Insight to Experimental Evidence"],"prefix":"10.1002","volume":"29","author":[{"given":"Lu\u00eds F. 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