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- Title
Lanthanide Complexes with 4,4′‐Bis(2‐sulfonatostyryl)‐biphenyl: Crystal Structures and Luminescence Properties.
- Authors
Mikhalyova, Elena A.; Zeller, Matthias; Goreshnik, Evgeny A.; Jasinski, Jerry P.; Butcher, Raymond J.; Nelyubina, Yulia V.; Hunter, Jordan L.; Sedykh, Alexander E.; Shishkina, Svitlana V.; Müller‐Buschbaum, Klaus; Eremenko, Igor L.; Addison, Anthony W.; Pavlishchuk, Vitaly V.
- Abstract
A series of new tris(pyrazolyl)borate (Tp−) and tris(2‐pyridylpyrazolyl)borate (TpPy−) Eu3+, Gd3+, Tb3+ and Dy3+ complexes with the dianionic ligand 4,4′‐bis(2‐sulfonatostyryl)biphenyl (Ssp2−, a widely used fluorescent whitener) were synthesized and their luminescence properties were studied. The Gd3+, Tb3+ and Dy3+ compounds possess only ligand‐centered emission, arising from the Ssp2− ligand, with quantum yields of up to 60 %. While the emission centers in these complexes are similar, the positions of the luminescence maxima, the emission quantum yields, and the lifetimes change in the order [(Tp2Ln)2Ssp]<[(TpPyLnSsp)2]<[Ln2Ssp3]n. Among the complexes studied, Eu3+‐centered emission was observed for only [(Tp2Eu)2Ssp]. In this compound, Tp− plays the role of an antenna ligand for Eu3+‐radiation, though the quantum yield is only 5 %.
- Subjects
LUMINESCENCE; CRYSTAL structure; COORDINATION compounds; BORATES; DIPHENYL
- Publication
European Journal of Inorganic Chemistry, 2022, Vol 2022, Issue 4, p1
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202100941