Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives
Photosensitized energy transfer (EnT) phenomena occur frequently in a variety of photophysical and photochemical processes and have been treated traditionally with the donor-acceptor distance dependent Förster and Dexter models. However, in special case incorrect arguments and formulae were often em...
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/144174 |
| _version_ | 1824456758070870016 |
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| author | Chen, Xuebo |
| author2 | Asian Spectroscopy Conference 2020 |
| author_facet | Asian Spectroscopy Conference 2020 Chen, Xuebo |
| author_sort | Chen, Xuebo |
| collection | NTU |
| description | Photosensitized energy transfer (EnT) phenomena occur frequently in a variety of photophysical and photochemical processes and have been treated traditionally with the donor-acceptor distance dependent Förster and Dexter models. However, in special case incorrect arguments and formulae were often employed by ignoring energy resonance conditions and selection rules of state-to-state transition, especially for the sensitive intramolecular EnT of lanthanide complexes bearing a uniform donor-acceptor distance. Herein, we proposed an innovative model of energy degeneracy crossing controlled EnT, which can be experimentally confirmed by a bi-exponential decay using the time-resolved photoluminescence measurements. The computationally determined energy resonance region provides the most effective channels to achieve the metal-to-ligand EnT beyond the distance-dependent model and sensitively bifurcates into the symmetry-allowed or forbidden channels for some representative europium antenna complexes. The outcomes of multidisciplinary treatment contribute a complementary EnT model that can be tuned by introducing a phosphorescence modulator through the mechanism-guided crystal engineering, and should motivate further development of mechanistic models and applications. |
| first_indexed | 2025-02-19T03:59:11Z |
| format | Conference Paper |
| id | ntu-10356/144174 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:59:11Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1441742020-10-22T20:11:15Z Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives Chen, Xuebo Asian Spectroscopy Conference 2020 Institute of Advanced Studies Science::Chemistry Photosensitization Mechanism Resonant energy Transfer Photosensitized energy transfer (EnT) phenomena occur frequently in a variety of photophysical and photochemical processes and have been treated traditionally with the donor-acceptor distance dependent Förster and Dexter models. However, in special case incorrect arguments and formulae were often employed by ignoring energy resonance conditions and selection rules of state-to-state transition, especially for the sensitive intramolecular EnT of lanthanide complexes bearing a uniform donor-acceptor distance. Herein, we proposed an innovative model of energy degeneracy crossing controlled EnT, which can be experimentally confirmed by a bi-exponential decay using the time-resolved photoluminescence measurements. The computationally determined energy resonance region provides the most effective channels to achieve the metal-to-ligand EnT beyond the distance-dependent model and sensitively bifurcates into the symmetry-allowed or forbidden channels for some representative europium antenna complexes. The outcomes of multidisciplinary treatment contribute a complementary EnT model that can be tuned by introducing a phosphorescence modulator through the mechanism-guided crystal engineering, and should motivate further development of mechanistic models and applications. Published version 2020-10-19T08:05:21Z 2020-10-19T08:05:21Z 2020 Conference Paper Chen, X. (2020). Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives. Proceedings of the 7th Asian Spectroscopy Conference 2020 (ASC 2020). doi:10.32655/ASC_8-10_Dec2020.5 https://hdl.handle.net/10356/144174 10.32655/ASC_8-10_Dec2020.5 en © 2020 Nanyang Technological University. application/pdf |
| spellingShingle | Science::Chemistry Photosensitization Mechanism Resonant energy Transfer Chen, Xuebo Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives |
| title | Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives |
| title_full | Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives |
| title_fullStr | Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives |
| title_full_unstemmed | Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives |
| title_short | Direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives |
| title_sort | direct observation of resonant energy transfer in lanthanide complexes from multidisciplinary perspectives |
| topic | Science::Chemistry Photosensitization Mechanism Resonant energy Transfer |
| url | https://hdl.handle.net/10356/144174 |
| work_keys_str_mv | AT chenxuebo directobservationofresonantenergytransferinlanthanidecomplexesfrommultidisciplinaryperspectives |