Simultaneous time-resolved fluorescence and thermal lens measurements: Application to energy transfer studies in europium chelates |
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| Affiliation: | 1. Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India;2. Department of Chemistry, Lovely Professional University, Phagwara, Jalandhar, 14441, Punjab, India;3. Department of Chemistry, DCR University of Science & Technology, Murthal, 131039 Haryana, India;4. Department of Chemistry, Kurukshetra University Kurukshetra, Kurukshetra, 136119, Haryana, India;5. Department of Chemistry, COBS&H, CCS Haryana Agricultural University, Hisar, 125004, Haryana, India;1. Department of Chemistry, Maharshi Dayanand University, Rohtak 124001, Haryana, India;2. Department of Chemistry, DCR University of Science and Technology, Murthal 131039, Haryana, India;3. Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India;4. Department of Chemistry, COBSandH, CCS Haryana Agricultural University, Hisar 125004, Haryana, India;1. Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India;2. Department of Chemistry, DCR University of Science and Technology, Murthal, 131039, Haryana, India;3. Department of Chemistry, Kurukshetra University, Kurukshetra, 136119, Haryana, India;4. School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, Jalandhar, Punjab, 144411, India |
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| Abstract: | Simultaneous time-resolved fluorescence and thermal lens measurements are applied to the study of europium chelates in methanol, ethanol and acetonitrile. The intramolecular energy transfer from the ligand to the ion results in a strong increase in europium fluorescence. Simultaneously, a slow rising component of the order of microseconds is observed on the thermal lens curve. Both events are respectively related to radiative and non-radiative relaxation of the long-lived 5D0 state of europium ions. |
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