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- W1998505897 abstract "The absorption and emission spectral properties of 7,8,17,18-tetrabromo-5,10,15,20-tetraphenylporphyrin and its metal derivatives are presented. Substitution with the electron-withdrawing bromine groups at the pyrrole carbons produces remarkable red shifts in their absorption and emission bands, which are influenced by the number of electron-withdrawing substituents. These results are rationalized by using four-orbital approach. The decrease in the fluorescence quantum yields and lifetimes for MTPPBr4 (MH2, Zn) are attributed to increased rate of intersystem-crossing." @default.
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- W1998505897 date "1997-10-01" @default.
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- W1998505897 title "7,8,17,18-Tetrabromo-5,10,15,20-tetraphenylporphyrin and it's metal derivatives photophysical properties and electronic structure" @default.
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- W1998505897 doi "https://doi.org/10.1016/s1386-1425(97)00141-8" @default.
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