Synthesis and luminescence of binuclear lanthanide complexes with 4,6-bis(diphenylphosphino)pyrimidine dioxide as a bridging ligand

Synthesis and luminescence of binuclear lanthanide complexes with 4,6-bis(diphenylphosphino)pyrimidine dioxide as a bridging ligand Full article

Journal

Polyhedron
ISSN: 1873-3719 , E-ISSN: 0277-5387

Output data

Year: 2023, Volume: 231, Article number : 116251, Pages count : 7 DOI: 10.1016/j.poly.2022.116251

Authors

Bryleva Yuliya A. ^1,2 , Yzhikova Karina M. ^1,2 , Artem'ev Alexander V. ¹ , Davydova Maria P. ¹ , Rakhmanova Mariana I. ¹ , Polyakova Evgenia V. ¹ , Glinskaya Ludmila A. ¹ , Samsonenko Denis G. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3, Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
2	Novosibirsk State University, 2, Pirogova Str., Novosibirsk 630090, Russian Federation

Funding (3)

1	Ministry of Science and Higher Education of the Russian Federation	121031700321-3
2	Ministry of Science and Higher Education of the Russian Federation	121031700313-8
3	Council for Grants of the President of the Russian Federation	MK-1939.2022.1.3

Five new isostructural binuclear complexes [Ln2L2(H2O)2(NO3)6] (Ln = Sm, Eu, Gd, Tb, and Dy) based on 4,6-bis(diphenylphosphino)pyrimidine dioxide (L) have been synthesized, and their luminescence properties have been studied. The complexes consist of two nine-coordinated Ln(III) atoms linked by two L ligands in the O,O´-bridging manner. The Gd3+ complex possesses ligand-centered emission, while its Tb3+ and Eu3+ analogs exhibit metal-centered phosphorescence only. At the same time, the Sm3+ and Dy3+ complexes show both metal- and ligand-centered emission. In the complexes studied, the ligand L sensitizes the Tb3+ emission most effectively due to the relatively high triplet energy level (23900 cm−1). Moreover, mixed-metal complexes [Tb2xEu2(1-x)L2(H2O)2(NO3)6] (x = 0.9, 0.8, 0.6, 0.4, 0.2) have been synthesized, whose emission color can be tuned from green to yellow and red through adjusting of the Tb/Eu ratio.

Bryleva Y.A. , Yzhikova K.M. , Artem'ev A.V. , Davydova M.P. , Rakhmanova M.I. , Polyakova E.V. , Glinskaya L.A. , Samsonenko D.G.
Synthesis and luminescence of binuclear lanthanide complexes with 4,6-bis(diphenylphosphino)pyrimidine dioxide as a bridging ligand
Polyhedron. 2023. V.231. 116251 :1-7. DOI: 10.1016/j.poly.2022.116251 WOS Scopus OpenAlex

Submitted:	Oct 21, 2022
Accepted:	Dec 9, 2022
Published online:	Dec 12, 2022
Published print:	Feb 1, 2023

Web of science:	WOS:000903534100007
Scopus:	2-s2.0-85144091988
OpenAlex:	W4313215143

DB	Citing
OpenAlex	4
Web of science	3
Scopus	4