Terbium and europium complexes with bispidine-based ligand as integrated luminescent thermometers and homogeneous catalysts

Terbium and europium complexes with bispidine-based ligand as integrated luminescent thermometers and homogeneous catalysts Full article

Journal

Molecular Catalysis
ISSN: 2468-8231 , E-ISSN: 2468-8274

Output data

Year: 2026, Volume: 591, Article number : 115660, Pages count : DOI: 10.1016/j.mcat.2025.115660

Authors

Orlova Anastasia V. ¹ , Kozhevnikova Vladislava Yu. ¹ , Dalinger Alexander I. ² , Tcelykh Liubov O. ¹ , Guo Zhipeng ³ , Zhu Yanan ³ , Vatsadze Sergey Z. ² , Utochnikova Valentina V. ¹

Affiliations

1	M.V. Lomonosov Moscow State University 1/3 Leninskye Gory, Moscow, 119991, Russia
2	N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991 Moscow, Russian Federation, Russia
3	Faculty of Materials Science, Shenzhen MSU–BIT University, Shenzhen, Guangdong 518172, China

Funding (1)

Lanthanide complexes are widely used in both luminescent thermometry and catalysis, yet their integration into a single material remains a major challenge. Herein, we report novel terbium and europium complexes with a bispidine-based ligand conjugated to benzoic acid via a triazole linker. These complexes exhibit dual functionality: they act as homogeneous catalysts for the Michael addition reaction and simultaneously serve as ratiometric luminescent thermometers. The mixed-metal complex (Eu0.1Tb0.9)(L)(TFA)2·H2O demonstrates bright emission with quantum yields up to 56 %, and europium lifetime-based thermometry shows a relative sensitivity of 1.7 %/ °C with a temperature uncertainty below 0.5 °C. Notably, the catalytic activity arises only in the metal-ligand complex form, as neither the ligand nor lanthanide salts alone promote the reaction. To the best of our knowledge, this is the first report of a rare-earth complex combining homogeneous catalysis with luminescent thermometry in solution.

Orlova A.V. , Kozhevnikova V.Y. , Dalinger A.I. , Tcelykh L.O. , Guo Z. , Zhu Y. , Vatsadze S.Z. , Utochnikova V.V.
Terbium and europium complexes with bispidine-based ligand as integrated luminescent thermometers and homogeneous catalysts
Molecular Catalysis. 2026. V.591. 115660 . DOI: 10.1016/j.mcat.2025.115660 WOS Scopus OpenAlex

Submitted:	Sep 5, 2025
Published online:	Dec 23, 2025

Web of science:	WOS:001651576200001
Scopus:	2-s2.0-105025401312
OpenAlex:	W7116865060

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