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- W4323863027 abstract "Building on a highly efficient synthesis of pyrrole-appended isocorroles, we have worked out conditions for manganese, palladium, and platinum insertion into free-base 5/10-(2-pyrrolyl)-5,10,15-tris(4-methylphenyl)isocorrole, H2[5/10-(2-py)TpMePiC]. Platinum insertion proved exceedingly challenging but was finally accomplished with cis-Pt(PhCN)2Cl2. All the complexes proved weakly phosphorescent in the near-infrared under ambient conditions, with a maximum phosphorescence quantum yield of 0.1% observed for Pd[5-(2-py)TpMePiC]. The emission maximum proved was found to exhibit a strong metal ion dependence for the 5-regiosomeric complexes, but not for the 10-regioisomers. Despite the low phosphorescence quantum yields, all the complexes were found to sensitize singlet oxygen formation with moderate to good efficiency, with singlet oxygen quantum yields ranging over 21-52%. With significant absorption in the near-infrared and good singlet oxygen-sensitizing ability, metalloisocorroles deserve examination as photosensitizers in photodynamic therapy of cancer and other diseases." @default.
- W4323863027 created "2023-03-11" @default.
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- W4323863027 date "2023-03-10" @default.
- W4323863027 modified "2023-09-23" @default.
- W4323863027 title "Transition Metal Isocorroles as Singlet Oxygen Sensitizers" @default.
- W4323863027 doi "https://doi.org/10.26434/chemrxiv-2023-5cb8g" @default.
- W4323863027 hasPublicationYear "2023" @default.
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