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

[Display omitted] 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 coo...

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Bibliographic Details
Published in:Mendeleev communications 2020-05, Vol.30 (3), p.322-324
Main Authors: Glebov, Evgeni M., Bakulina, Olga D., Shushakov, Anton A., Matveeva, Svetlana G., Pozdnyakov, Ivan P., Grivin, Vjacheslav P., Plyusnin, Victor F., Vasilchenko, Danila B., Melnikov, Alexei A., Chekalin, Sergei V.
Format: Article
Language:English
Subjects:
dppz
laser flash photolysis
photochemistry
photophysics
triplet state
ultrafast pump-probe spectroscopy
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Summary:[Display omitted] 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 ∼3ps and then intersystem crossing for ∼50ps. Spectral and kinetic characteristics of the triplet excited state have been determined.
ISSN:0959-9436
DOI:10.1016/j.mencom.2020.05.021