Research Article
A Singlet Oxygen Photogeneration and Luminescence Study of Unsymmetrically Substituted Mesoporphyrinic Compounds
Table 3
Delayed fluorescence lifetime, , for the series of unsymmetrically substituted mesoporphyrins in benzene (at room temperature, in the absence of oxygen) (argon purged samples).
| ||||||||||||||||||||||||||||||||||||
| The intensities of the emission bands at T = 77 K for the compounds presented in the table were very small, so that TPP was the only one for which the intensity was sufficiently high to allow an acceptable precision for the delayed fluorescence lifetime determination. | ||||||||||||||||||||||||||||||||||||