Oxygen-18 isotope exchange and equilibration processes over preoxidised and promoted ceria. Part I. 15N18O(g) or (18O2+16O2(g))

Sensitization of O2(1Δg) by N-methylacri

Sensitization of O2(1Δg) by N-methylacridone. Solvent and O2-concentration dependence and 16O/18O isotope exchange experiments

✍ J. Bendig; R. Schmidt; H.-D. Brauer 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 562 KB

The quantum yield of singlet oxygen O,( '4) formation by the ketone N-methylacridone (NMA) varies strongly with solvent: 0.05 (methanol) Q QsMA 6 0.29 (tetrachloromethane). The analysis of the solvent and O+oncentrationdependent data on NMA fluorescence demonstrates that O,(tAJ is only formed in que