Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 4, Pages 1377-1381Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201509411
Keywords
absorption; chirality; fluorescence; N ligands; zinc
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Funding
- MEXT of Japan [25107510, 26708005, 26107510, 26620039, 15H00862, 2406, 2506]
- Murata Science Foundation
- Japan Prize Foundation
- Tokuyama Science Foundation
- Iketani Science and Technology Foundation
- Ogasawara Foundation for the Promotion of Science Engineering
- Kao Foundation for Arts and Sciences
- Asahi Glass Foundation
- Noguchi Institute
- Japan Association for Chemical Innovation
- MIKIYA Science and Technology Foundation
- Yazaki Memorial Foundation for Science and Technology
- Shorai Foundation for Science and Technology
- LIXIL JS Foundation
- Iwatani Naoji Foundation
- JSPS
- Grants-in-Aid for Scientific Research [26107510, 26620039, 2506, 25248019, 15H00862, 25107510, 26220801, 26410093, 26708005] Funding Source: KAKEN
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Heteroleptic zinc(II) complexes synthesized using achiral dipyrrinato and chiral bis(oxazoline) ligands show bright fluorescence with quantum efficiencies of up to 0.70. The fluorescence originates from the (1)pi-pi* photoexcited state localized exclusively on the dipyrrinato ligand. Furthermore, the luminescence is circularly polarized despite the achirality of the dipyrrinato ligand. Single-crystal X-ray structure analysis discloses that the chiral bis(oxazoline) ligand undergoes intramolecular pi-pi stacking with the dipyrrinato ligand, inducing axial chirality in the dipyrrinato moiety.
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