Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5399004 | Journal of Luminescence | 2016 | 9 Pages |
Abstract
Tetraphenylimidodiphosphinate (tpip) forms neutral 3:1 complexes with lanthanide ions. These complexes can accommodate one ancillary planar heterocyclic ligand to complement their coordination sphere of Eu3+ to coordination number 8. Several co-ligands were tested to form new complexes: 1,10-phenanthroline, bathophenanthroline, 2,4,6-tris(2-pyridyl)-1,3,5-triazine, dipyrido[3,2-f:2â²,3â²-h]quinoxaline and 2,2â²:6â²,2â²â²-terpyridine. The addition of heterocyclic N,N-bidentate co-ligands to the coordination sphere results in a dramatic (by a factor of 45-50) luminescence enhancement of the parent Eu(tpip)3. The solid-state measurements confirmed that the ancillary ligands strongly increased the photoluminescence quantum yield (PLQY) of the investigated complexes.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Marek Pietraszkiewicz, Oksana Pietraszkiewicz, Jerzy Karpiuk, Alina Majka, Grzegorz Dutkiewicz, Teresa Borowiak, Anna M. Kaczmarek, Rik Van Deun,