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Article

Formation and decay of a triplet state of dipyrido[3,2-a:2′,3′-c]phenazine

Mendeleev Communications. 2020. Vol. 30. No. 3. P. 322-324.
Glebov E. M., Bakulina O. D., Shushakov A. A., Matveeva S. G., Pozdnyakov I. P., Grivin V. P., Plyusnin V. F., Vasilchenko D. B., Melnikov A., Chekalin S. V.

The photophysical and photochemial properties of dipyrido[3,2-a:2′,3′-c]phenazine (dppz) in acetonitrile have been investigated by laser flash photolysis and ultrafast pump-probe spectroscopy. The excitation of dppz to the first singlet excited state was followed by vibrational cooling with solvent relaxation for ∼3 ps and then intersystem crossing for ∼50 ps. Spectral and kinetic characteristics of the triplet excited state have been determined.