Spectroscopy,photophysics and photochemistry of 1,3-diketoboronates VI: The exciplexes of 2-naphthyl-substituted 1,3-diketoboronates |
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| Institution: | 1. Sektion Chemie, Friedrich-Schiller-Universität Jena, Jena 6900 G.D.R.;2. Faculty of Chemistry, Moscow State University, Moscow 117234 U.S.S.R.;1. Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;2. Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China;1. Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, China;2. Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China;1. Institute of Polymer Materials, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena 3/7, Riga LV 1048, Latvia;2. Biorefining and Advanced Materials Research Center, SRUC, Edinburgh, EH9 3JG, UK;3. School of Engineering, University of Petroleum & Energy Studies (UPES), Dehradun 248007, India;1. Department of Construction, Kayseri Üniversitesi Tomarza Mustafa Akincioglu Vocational School, Kayseri University, Kayseri, 38940, Turkey;2. Department of Building Engineering, Energy Systems and Sustainability Science, Faculty of Engineering and Sustainable Development, University of Gävle, 801 76 Gävle, Sweden;3. Department of Civil Engineering, Zonguldak Bulent Ecevit University, Zonguldak, Turkey;4. School of Housing, Building and Planning, Universiti Sains Malaysia, 11800, Penang, Malaysia;5. Department of Physics, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia;6. Department of Civil Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya, Turkey;1. Department of Geology and Environmental Earth Science, Miami University, Oxford, OH 45056, United States;2. State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, China;3. State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China;4. Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, United States;5. Case Western Reserve University Center for Synchrotron Biosciences, National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY 11973, United States;6. Department of Paper and Chemical Engineering, Miami University, Oxford, OH 45056, United States |
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| Abstract: | The fluorescence quenching of 2-naphthyl-substituted 1,3-diketoboronates (2-NDKB) by naphthalene in heptane is accompanied by exciplex emission. The exciplex formation occurs irreversibly because of the high electron affinity of 2-NDKB. In one case the exciplex fluorescence decay reveals the existence of ground state rotamers. |
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