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JOURNALS // Mendeleev Communications // Archive
Mendeleev Commun., 2020 Volume 30, Issue 3, Pages 322–324 (Mi mendc1185)
This article is cited in 3 papers

Communications

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

E. M. Glebovab, O. D. Bakulinabc, A. A. Shushakovac, S. G. Matveevaa, I. P. Pozdnyakovab, V. P. Grivinab, V. F. Plyusninab, D. B. Vasilchenkobd, A. A. Melnikovef, S. V. Chekaline

a V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
b Novosibirsk State University, Novosibirsk, Russian Federation
c International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
d A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
e Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow, Russian Federation
f National Research University Higher School of Economics (HSE University), Moscow, Russian Federation

Abstract: 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.

Keywords: photophysics, photochemistry, triplet state, dppz, laser flash photolysis, ultrafast pump-probe spectroscopy..

Language: English

DOI: 10.1016/j.mencom.2020.05.021


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