Tridentate Nitrogen Ligand as a Tool for the Construction of Well-Defined Rare Earth Trichloride Complexes

Degtyareva, S.S.; Bardonov, D.A.; Afanaseva, A.V.; Puntus, L.N.; Lyssenko, K.A.; Birin, K.P.; Minyaev, M.E.; Burykina, J.V.; Taydakov, I.V.; Varaksina, E.A.; Nifant’ev, I.E.; Roitershtein, D.M.

Авторы: Degtyareva Svetlana S., Bardonov Daniil A., Afanaseva Anna V., Puntus Lada N., Lyssenko Konstantin A., Birin Kirill P., Minyaev Mikhail E., Burykina Julia V., Taydakov Ilya V., Varaksina Evgenia A., Nifant’ev Ilya E., Roitershtein Dmitrii M.
Журнал: Inorganic Chemistry
Год издания: 2024
Издательство: American Chemical Society
Местоположение издательства: United States
DOI: 10.1021/acs.inorgchem.3c03492
Аннотация: LnCl3(THF)3 (Ln = Y, La ÷ Nd, Sm ÷ Lu) readily react with the tridentate 1,3,5-trimethyl-1,3,5-triazacyclohexane (Me3tach) ligand to form mono- or binuclear lanthanide trichloride complexes, depending on the stoichiometry of the reaction and the ionic radius of the metal: mononuclear pseudosandwich [LnCl3(Me3tach)2], (Ln = Y, La ÷ Ho) or binuclear complexes [Ln2Cl6(Me3tach)3], or [LnCl3(Me3tach)(THF)]2 (Ln = Sm, Tb). Detailed analysis of the NMR data of [LnCl3(Me3tach)2] complexes with paramagnetic lanthanide ions showed that their structures remained unchanged in the toluene solution. A series of isomorphous complexes [LnCl3(Me3tach)(Py)2] (Ln = La, Sm, Tb, Er, Lu; Py = pyridine) have been obtained by the recrystallization of either mononuclear or binuclear complexes from pyridine. Complexes of terbium and europium ions with the Me3tach ligand exhibit relatively high quantum yields of metal-centered luminescence (0.39 and 0.32, respectively).
Добавил в систему: Бардонов Даниил Аркадьевич

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Tridentate Nitrogen Ligand as a Tool for the Construction of Well-Defined Rare Earth Trichloride Complexesстатья

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