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

被引：0
作者：
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
机构：
[1] Russian Academy of Sciences,Nikolaev Institute of Inorganic Chemistry, Siberian Branch
[2] Russian Academy of Sciences,Vorozhtsov Institute of Organic Chemistry, Siberian Branch
[3] Russian Academy of Sciences,International Tomography Center, Siberian Branch
[4] Novosibirsk State University,undefined
来源：
Journal of Structural Chemistry | 2019年 / 60卷
关键词：
lanthanides; complexes; terpenes; (+)−3-carene; structure; magnetic properties; photoluminescence;
D O I：
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中图分类号：
学科分类号：
摘要：
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.
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页码：1314 / 1326
页数：12
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