What is it about?
Two different positioned Pyrene-Urea compounds, 1PUP and 4PUP, were synthesized and examined to reveal fluorescence properties aiming to improve the fluorescence quantum yield of a tautomer.
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Why is it important?
Substitution dependence of fluorescence properties of tautomer is deeply involved in the conjugation between a urea moiety and a pyrene ring. 4PUP has favorable ability for application due to its higher intense in emission than that of 1PUP.
Perspectives
Pyrene derivatives have been commonly used to confirm fluorescence properties. The present result provides a clue to improve a fluorescence quantum yield of other emissive compounds.
Professor Yoshinobu Nishimura
nishimura@chem.tsukuba.ac.jp
Read the Original
This page is a summary of: A Drastic Red-shift of Tautomer Fluorescence Depending on the Substitution Pattern of Pyrene–Urea Compounds Generated by Excited State Intermolecular Proton Transfer, Chemistry Letters, April 2018, The Chemical Society of Japan,
DOI: 10.1246/cl.171187.
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