Excited-state intramolecular proton transfer in 2,4,5-triarylimidazole molecules |
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| Authors: | Shienok,A. I.,Kol" tsova,L. S.,Zaichenko,N. L.,Marevtsev,V. S. |
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| Affiliation: | (1) Russian Academy of Sciences, N. N. Semenov Institute of Chemical Physics, 4 ul. Kosygina, 119991 Moscow, Russian Federation |
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| Abstract: | Excited-state intramolecular proton transfer (ESIPT) in the 2,4,5-triarylimidazole molecules was studied by spectral-luminescent technique. For 4,5-diphenyl-(2-hydroxyphenyl)imidazoles, the ESIPT occurs in both liquid and glassy matrices at 77 K. For 4,5-diphenyl-(2-hydroxynaphthyl)imidazole, the ESIPT requires rotation of molecular fragments and is not observed at 77 K. |
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| Keywords: | triarylimidazoles excited states of molecules intramolecular proton transfer luminescence |
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