Photoinduced processes in bis(diethylaminobenzylidene)cyclohexanone and its bis(aza-18-crown-6)-containing analogue in acetonitrile
- Authors: Zakharova G.V.1, Zyuz’kevich F.S.1, Gutrov V.N.1, Nuriev V.N.2, Vatsadze S.Z.2, Plotnikov V.G.1,3, Avakyan V.G.1, Gromov S.P.1,2, Chibisov A.K.1
-
Affiliations:
- Photochemistry Center
- Moscow State University
- Tomsk State University
- Issue: Vol 50, No 6 (2016)
- Pages: 442-446
- Section: Photonics
- URL: https://journal-vniispk.ru/0018-1439/article/view/157072
- DOI: https://doi.org/10.1134/S0018143916060205
- ID: 157072
Cite item
Abstract
Photoinduced processes in bis(diethylaminobenzylidene)cyclohexanone (CH1) and its bis(aza-18-crown-6) derivative (CH2) in acetonitrile at ambient temperature and 77 K have been studied. The absorption, fluorescence, and phosphorescence spectra of CH1 and CH2 are similar. The probability of the formation of the triplet state is higher for CH2 molecules (λT-Tmax = 660 nm, lifetime τT ~ 20 μs). The lifetime of the CH1 molecule in the triplet state is estimated at τT ~ 2–3 μs. Photoisomers of CH1 and CH2 are formed along with the triplet state. According to DFT calculation results, the formation of trans–cis photoisomers of CH1 and CH2 is the most energetically favorable.
About the authors
G. V. Zakharova
Photochemistry Center
Author for correspondence.
Email: gvzakharova@gmail.com
Russian Federation, ul. Novatorov 7a, bldg. 1, Moscow, 119421
F. S. Zyuz’kevich
Photochemistry Center
Email: gvzakharova@gmail.com
Russian Federation, ul. Novatorov 7a, bldg. 1, Moscow, 119421
V. N. Gutrov
Photochemistry Center
Email: gvzakharova@gmail.com
Russian Federation, ul. Novatorov 7a, bldg. 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, bldg. 1, Moscow, 119421; pr. Lenina 36, Tomsk, 634050
V. G. Avakyan
Photochemistry Center
Email: gvzakharova@gmail.com
Russian Federation, ul. Novatorov 7a, bldg. 1, Moscow, 119421
S. P. Gromov
Photochemistry Center; Moscow State University
Email: gvzakharova@gmail.com
Russian Federation, ul. Novatorov 7a, bldg. 1, Moscow, 119421; Moscow, 119232
A. K. Chibisov
Photochemistry Center
Email: gvzakharova@gmail.com
Russian Federation, ul. Novatorov 7a, bldg. 1, Moscow, 119421
Supplementary files
