Lanthanide(III) (Eu, Gd, Tb, Dy) Complexes Derived from 4-(Pyridin-2-yl)methyleneamino-1,2,4-triazole: Crystal Structure, Magnetic Properties, and Photoluminescence

被引：21

作者：

Bazhina, Evgeniya S. ^{[1
]}

Bovkunova, Anna A. ^{[1
]}

Medved'ko, Alexey V. ^{[2
]}

Varaksina, Evgeniya A. ^{[3
,4
,5
]}

Taidakov, Ilya V. ^{[4
]}

Efimov, Nikolay N. ^{[1
]}

Kiskin, Mikhail A. ^{[1
]}

Eremenko, Igor L. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, NS Kurnakov Inst Gen & Inorgan Chem, Leninsky Prosp 31, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Dept Chem, Leninskie Gory 1-3, Moscow 119991, Russia

[3] Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, Vavilov St 28, Moscow 119991, Russia

[4] Russian Acad Sci, PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia

[5] Moscow Inst Phys & Technol, Inst Sky Lane 9, Dolgoprudnyi 141701, Moscow Region, Russia

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2018年 / 13卷 / 16期

基金：

俄罗斯科学基金会;

关键词：

lanthanides; luminescence; magnetic properties; triazoles; X-ray diffraction; SINGLE-MOLECULE-MAGNET; SPIN-LATTICE-RELAXATION; BASE LIGAND SYNTHESIS; LUMINESCENCE PROPERTIES; TB(III) COMPLEXES; POLYHEDRAL STRUCTURES; MONONUCLEAR EU(III); ENERGY-TRANSFER; ODD NUMBER; ION MAGNET;

D O I：

10.1002/asia.201800511

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction of lanthanide(III) nitrates with 4-(pyridin-2-yl)methyleneamino-1,2,4-triazole (L) was studied. The compounds [Ln(NO3)(3)(H2O)(3)]center dot 2L, in which Ln=Eu (1), Gd (2), Tb (3), or Dy (4), obtained in a mixture of MeCN/EtOH have the same structure, as shown by XRD. In the crystals of these compounds, the mononuclear complex units [Ln(NO3)(3)(H2O)(3)] are linked to L molecules through intermolecular hydrogen-bonding interactions to form a 2D polymeric supramolecular architecture. An investigation into the optical characteristics of the Eu3+-, Tb3+-, and Dy3+-containing compounds (1, 3, and 4) showed that these complexes displayed metal-centered luminescence. According to magnetic measurements, compound 4 exhibits single-ion magnet behavior, with Delta E-eff/k(B)=86 K in a field of 1500 Oe.

引用

页码：2060 / 2068

页数：9

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