Photonics of bis(diethylaminobenzylidene)cyclopentanone and its analogue with the bisazacrown moiety in acetonitrile


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Abstract

Photoprocesses in bis(diethylaminobenzylidene)cyclopentanone (D1) and its bis(aza-18-crown-6) derivative (D2) have been studied in acetonitrile. The absorption, fluorescence, and phosphorescence spectra of D1 are similar to those of D2. Laser excitation of oxygen-free solutions of D1 and D2 leads to generation of a triplet state with a lifetime of ∼1 μs and two intermediate species with lifetimes of ∼100 μs and longer than 1 s.

About the authors

G. V. Zakharova

Photochemistry Center

Author for correspondence.
Email: gvzakharova@gmail.com
Russian Federation, ul Novatorov 7a, korp. 1, Moscow, 119421

F. S. Zyuz’kevich

Photochemistry Center

Email: gvzakharova@gmail.com
Russian Federation, ul Novatorov 7a, korp. 1, Moscow, 119421

V. N. Nuriev

Moscow State University

Email: gvzakharova@gmail.com
Russian Federation, Moscow, 119232

S. Z. Vatsadze

Moscow State University

Email: gvzakharova@gmail.com
Russian Federation, Moscow, 119232

V. G. Plotnikov

Photochemistry Center; Tomsk State University

Email: gvzakharova@gmail.com
Russian Federation, ul Novatorov 7a, korp. 1, Moscow, 119421; pr. Lenina 36, Tomsk, 634050

S. P. Gromov

Photochemistry Center; Moscow State University

Email: gvzakharova@gmail.com
Russian Federation, ul Novatorov 7a, korp. 1, Moscow, 119421; Moscow, 119232

A. K. Chibisov

Photochemistry Center

Email: gvzakharova@gmail.com
Russian Federation, ul Novatorov 7a, korp. 1, Moscow, 119421

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