Lanthanide Complexes of Related Click Tripodal 1,2,3-Triazole-Containing Ligands on the Ph3P(O) Platform.The N2 and N3 Coordination of Triazole Fragments

Matveevaa, A.G.; Pasechnik, M.P.; Aysin, R.R.; Bykhovskaya, O.V.; Matveev, S.V.; Baulina, T.V.; Kudryavtsev, I.Y.; Turanov, A.N.; Karandashev, V.K.; Brel, V.K.

Авторы: Matveevaa A.G., Pasechnik M.P., Aysin R.R., Bykhovskaya O.V., Matveev S.V., Baulina T.V., Kudryavtsev I.Yu, Turanov A.N., Karandashev V.K., Brel V.K.
Журнал: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
Том: 50
Номер: 2
Год издания: 2024
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 145
Последняя страница: 155
DOI: 10.1134/S107032842360100
Аннотация: Abstract—The coordination and extraction properties of two related tripodal ligands differed by types of addition of the triazole fragment and linker length in the {2-[(4-Ph-1,2,3-triazol-1-yl)CH2CH2O]C6H4}3P(O) (L1) and {2-[(1-Ph-1,2,3-triazol-4-yl)CH2O]C6H4}3P(O) (L2) are compared. The structures of the complexes [Lа(NO3)3L1] (I) and [Lu(NO3)3L1] (II) are studied in the solid phase (elemental analysis, IR and Raman spectroscopy) and in solutions (IR and multinuclear 1H, 13C, and 31P NMR spectroscopy). A normal coordinate analysis at the TPSS-D4/Def2-SVP level is performed for an isolated molecule of the model complex [La{P(O),N3,N2-L3}(O,O-NO3)3] (L3 = {2-[(4-Me-1,2,3-triazol-1-yl)CH2CH2O]C6H4}3-P(O)).According to the set of spectral and quantum chemical data, ligand L1 exhibits the tridentate P(O),N2,N2coordination in lanthanide complexes I and II. These are neutral complexes in the solid state and in CD3CN solutions, and the dynamic equilibrium of the neutral and ionic complexes is observed in CDCl3. Unlike ligand L1, ligand L2 exhibits the tetradentate P(O),N3,N3,N3 coordination in the [Ln(NO3)3L2] complexes with the same metals (Ln = La3+, Lu3+) in solutions. The efficiency of extraction of microquantities of f elementsfrom the aqueous phase to 1,2-dichloroethane by compounds L1 and L2 is discussed in comparisonwith the structures of the complexes of both ligands in solutions.
Добавил в систему: Брель Валерий Кузьмич

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Lanthanide Complexes of Related Click Tripodal 1,2,3-Triazole-Containing Ligands on the Ph3P(O) Platform.The N2 and N3 Coordination of Triazole Fragmentsстатья

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