Solvent-Dependent Photophysics of Indoloquinoxaline |
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| Affiliation: | 1. Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Viet Nam;2. Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Viet Nam;1. Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Viet Nam;2. Vietnam National University, Ho Chi Minh City, Viet Nam;1. Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Viet Nam;2. Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam |
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| Abstract: | Rapid internal conversion (6×108 s-1) from the S1 (π π*) state of indolo [2,3-b] quinoxaline is observed in ethanol, apparently due to a specific hydrogen bonding interaction. In other solvents (heptane, dioxane and acetonitrile) radiationless transition occurs via intersystem crossing. |
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