Slow relaxation of magnetization and luminescence in seven- and six-coordinate Tb3+ complexes
Year: 2025
Type: article
Abstract: The synthesis, structures, magnetic and luminescent properties of a new series of mononuclear Tb3+ complexes, such as {Tb[OCH(CF3)Ph]2(THF)5}[BPh4], [Tb(OC6F4C6F5)2(THF)5][BPh4], {Tb[OC(CF3)2Ph]2(THF)4} [BPh4] and {Tb[OC(CF3)3]3(THF)3}, in which fluorinated alkoxide ligands with different steric bulk afford different geometries of the Tb center, are reported. The compound {Tb[OCH(CF3)Ph]2(THF)5}[BPh4], which adopts a pentagonal bipyramidal geometry with an axial O-Tb-O angle of 177.7(5)° and short Tb-O distances, behaves as a field-induced single molecule magnet. All complexes exhibit characteristic Tb3+ emission with a relatively long lifetime of up to 1.7 ms.
Source: Mendeleev Communications
DOI: 10.71267/mencom.7860
Authors: Dmitry Mikhailovich Lyubov, Gautier Félix, Aleksey O. Tolpygin, Tatyana V. Mahrova, Yulia Vladimirovna Nelyubina, Saad Sene, Vladislav Mikailovich Korshunov, Il'ya Viktorovich Taidakov, Andrey Aleksandrovich Tyutyunov, Boris Le Guennic, Olivier Cador, Yannick Guari, Joulia Larionova, Aleksandr Anatol'evich Trifonov
Institutions: Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, G.A. Razuvaev Institute of Organometallic Chemistry, Université de Montpellier, Institut Charles Gerhardt Montpellier, N.D. Zelinsky Institute of Organic Chemistry, Institut des Sciences Chimiques de Rennes, Université de Rennes
Language: Russian
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Awards: G2397083925, G5250348369
OpenAlex ID: W4415383265