Correlation between Excited-State Intramolecular Proton-Transfer and Singlet-Oxygen Quenching Activities in 1-(Acylamino)anthraquinones

Excited-state intramolecular proton-transfer and singlet-oxygen quenching activities of intramolecularly hydrogen-bonded 1-(acylamino)anthraquinones have been studied by means of static and laser spectroscopies

Shin-ichi Nagaoka; Hikaru Endo; Keishi Ohara; Umpei Nagashima

2014

Key concepts

Scholarcy highlights

  • Excited-state intramolecular proton-transfer and singlet-oxygen quenching activities of intramolecularly hydrogen-bonded 1-(acylamino)anthraquinones have been studied by means of static and laser spectroscopies
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  • The ESIPT shows a substituent effect, which can be explained in terms of the nodal-plane model
  • Hydrogen-bonded hydroxyanthraquinones found in aloe show a similar positive and linear correlation, which can be understood in the same way
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