Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume 2022, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.202100941
Keywords
Coordination compounds; Fluorescent whiteners; Lanthanides; Ligand-centered emission; Luminescence
Categories
Funding
- National Research Foundation of Ukraine [2020.02/0202]
- Trilateral Partnerships among researcher of the Ukraine [90343]
- Trilateral Partnerships among researcher of the Russia [90343]
- Trilateral Partnerships among researcher of the Germany [90343]
- National Academy of Sciences of Ukraine Target Program of Fundamental Research Prospective fundamental studies and innovative developments of nanomaterials and nanotechnologies for the needs of industry, health protection and agriculture [32/20-N, 32/21-N]
- Drexel University
- Ministry of Science and Higher Education of the Russian Federation
- NSF-MRI program [CHE-1039027]
- Slovenian Research Agency (ARRS) [P1-0045]
- DFG -Deutsche Forschungsgemeinschaft [SPP1928, MU-1562/13-1]
Ask authors/readers for more resources
A series of new tris(pyrazolyl)borate and tris(2-pyridylpyrazolyl)borate complexes with Eu3+, Gd3+, Tb3+, and Dy3+ were synthesized and their luminescent properties were studied. The Gd3+, Tb3+, and Dy3+ compounds exhibited ligand-centered emission, while the Eu3+ compound exhibited Eu3+-centered emission.
A series of new tris(pyrazolyl)borate (Tp(-)) and tris(2-pyridylpyrazolyl)borate (Tp(Py-)) Eu3+, Gd3+, Tb3+ and Dy3+ complexes with the dianionic ligand 4,4 '-bis(2-sulfonatostyryl)biphenyl (Ssp(2-), 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 Ssp(2-) 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 [(Tp(2)Ln)(2)Ssp]<[(Tp(Py)LnSsp)(2)]<[Ln(2)Ssp(3)](n). Among the complexes studied, Eu3+-centered emission was observed for only [(Tp(2)Eu)(2)Ssp]. In this compound, Tp(-) plays the role of an antenna ligand for Eu3+-radiation, though the quantum yield is only 5 %.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available