Synthesis, Structure, Magnetic and Photoluminescent Properties of Lanthanide(III) Complexes with a Ligand Based on 1,10-Phenanthroline and (+)−3-Carene

Yu A. Bryleva, L. A. Glinskaya, A. M. Agafontsev, M. I. Rakhmanova, A. S. Bogomyakov, T. S. Sukhikh, E. A. Gorbunova, A. V. Tkachev, S. V. Larionov

Результат исследования: Научные публикации в периодических изданияхстатья

1 Цитирования (Scopus)

Аннотация

Ionic complexes of the composition [LnL2(NO3)2]2[Ln(NO3)5]3Me2CO (Ln = Sm (1), Eu (2), Tb (3), Dy (4)) with an optically active ligand L containing 1,10-phenanthroline and (+)−3-carene moieties are synthesized. According to the X-ray crystallographic data, the crystal structure of compound 2 is composed of complex [EuL2(NO3)2]+ cations (N6O4 polyhedron) and complex [Eu(NO3)5]2− anions (O10 polyhedron), and also Me2CO molecules. The L and NO3 ligands perform both tridentate and bidentate chelating functions respectively. Complexes 1–4 are isostructural and crystallize in the non-centrosymmetric space group P1; their magnetic properties are studied in the temperature range 2–300 K. The μeff values for 1–4 at 300 K are 3.14 μB, 6.08 μB, 16.76 μB, and 18.30 μB respectively and are typical of Ln3+ ions. For complex 3 significant anisotropy results in a nonlinear field dependence of the magnetization at 2 K. Complexes 1–4 exhibit metal-centered orange (Sm3+), red (Eu3+), green (Tb3+), and yellow (Dy3+) luminescence in the solid state at room temperature. Luminescence quantum yield decreases for solid samples in the order 2 > 1 > 3 ≈ 4.

Язык оригиналаанглийский
Страницы (с-по)1314-1326
Число страниц13
ЖурналJournal of Structural Chemistry
Том60
Номер выпуска8
DOI
СостояниеОпубликовано - 1 авг 2019

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