Employing three-blade propeller lanthanide complexes as molecular luminescent thermometers: study of temperature sensing through a concerted experimental/theory approach - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Journal of Materials Chemistry C Année : 2022

Employing three-blade propeller lanthanide complexes as molecular luminescent thermometers: study of temperature sensing through a concerted experimental/theory approach

Albano Carneiro Neto
Luis Carlos

Résumé

We report the synthesis, structures, magnetic and luminescence properties of a series of three-blade propeller homoleptic lanthanide complexes [LnL3](ClO4)3·H2O·2MeCN (Ln = Eu (1), Tb (2), Dy (3), Er (4), Yb (5), Gd (6); L = 2,6-bis(1-methyl-imidazol-2-yl)pyridine). The Eu, Tb, and Dy analogues exhibit the characteristic lanthanide-based luminescence. Remarkably, the mixed Eu/Tb complex with a metal ratio of 1 : 10 can be used as a ratiometric thermometer in the solid-state between 130 and 220 K with the maximum value of Sr = 6.6% K−1 within the range of 150–170 K. Theoretical calculations allow not only modelling of the luminescence properties of pure complexes but also rationalization of the performances of the mixed Eu/Tb thermometers.
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Dates et versions

hal-03688300 , version 1 (10-10-2022)

Identifiants

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Dmitry Lyubov, Albano Carneiro Neto, Ahmad Fayoumi, Konstantin Lyssenko, Vladislav Korshunov, et al.. Employing three-blade propeller lanthanide complexes as molecular luminescent thermometers: study of temperature sensing through a concerted experimental/theory approach. Journal of Materials Chemistry C, 2022, 10 (18), pp.7176-7188. ⟨10.1039/d2tc01289h⟩. ⟨hal-03688300⟩
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