Enhanced TbIII-centered Luminescence due to Elongated Methylene Arms of Tripodal Schiff Base Ligand
LnIII-tripodal Schiff base complex TbIIILtrpn was prepared, in which the three arms of the ligand were extended by one methylene based on the tris(2-aminoethyl)amine in TbIIILtren. TbIIILtrpn showed enhanced TbIII-centered luminescence compared to TbIIILtren. Crystallographic analysis revealed that...
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Veröffentlicht in: | Chemistry letters 2021-01, Vol.50 (7), p.1382-1384 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | LnIII-tripodal Schiff base complex TbIIILtrpn was prepared, in which the three arms of the ligand were extended by one methylene based on the tris(2-aminoethyl)amine in TbIIILtren. TbIIILtrpn showed enhanced TbIII-centered luminescence compared to TbIIILtren. Crystallographic analysis revealed that the symmetry of the seven-coordination environment of the TbIII center in TbIIILtrpn was diminished compared to that in TbIIILtren, resulting in the increased radiative transition rate and/or decreased back energy transfer rate and, thus, the increased luminescence. |
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ISSN: | 0366-7022 1348-0715 |
DOI: | 10.1246/cl.210150 |