Five Dinuclear Lanthanide Complexes Based on 2,4-dimethylbenzoic Acid and 5,5′-dimethy-2,2′-bipyridine: Crystal Structures, Thermal Behaviour and Luminescent Property

被引：5

作者：

Zhao, Jia-Yuan ^{[1
]}

Ren, Ning ^{[2
]}

Zhang, Ying-Ying ^{[3
]}

Tang, Kun ^{[4
]}

Zhang, Jian-Jun ^{[1
]}

机构：

[1] Hebei Normal Univ, Coll Chem & Mat Sci, Testing & Anal Ctr, Shijiazhuang, Hebei, Peoples R China

[2] Handan Univ, Coll Chem Engn & Mat, Hebei Key Lab Heterocycl Cpds, Handan, Peoples R China

[3] Hengshui 1 High Sch, Hengshui, Peoples R China

[4] Hebei Geo Univ, Huaxin Coll, Shijiazhuang, Hebei, Peoples R China

来源：

FRONTIERS IN CHEMISTRY | 2021年 / 9卷

基金：

中国国家自然科学基金;

关键词：

lanthanide complexes; aromatic carboxylic acids; TG; DSC-FTIR; crystal structure; luminescence; RARE-EARTH COMPLEXES; 2,4-DICHLOROBENZOIC ACID; BIOLOGICAL-ACTIVITIES; MAGNETIC-PROPERTIES; ENHANCEMENT; EU(III); SERIES;

D O I：

10.3389/fchem.2021.726813

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of new complexes, [Ln (2,4-DMBA)(3)(5,5 '-DM-2,2 '-bipy)](2) (Ln = Sm(1), Eu (2)), [Pr (2,4-DMBA)(3) (5,5 '-DM-2,2 '-bipy)](2)center dot 0.5(C2H5OH) (3), [Ln (2,4-DMBA)(3) (5,5 '-DM-2,2 '-bipy)](2)center dot 0.5(2,4-DMBAH)center dot 0.25(5,5 '-DM-2,2 '-bipy) (Ln = Tb (4), Dy (5)) (2,4-DMBA = 2,4-dimethylbenzoate, 5,5 '-DM-2,2 '-bipy = 5,5 '-dimethy-2,2 '-bipyridine) were synthesized via hydrothermal reaction conditions. The complexes were characterized through elemental analysis, Infrared spectra (IR), Raman (R) spectra, UV-Vis spectra, single X-ray diffraction. Single crystal data show that complexes 1-5 are binuclear complexes, but they can be divided into three different crystal structures. The thermal decomposition mechanism of complexes 1-5 were investigated by the technology of simultaneous TG/DSC-FTIR. What's more, the luminescent properties of complexes 1-2 and 4 were discussed, and the luminescence lifetime (tau) of complexes 2 and 4 were calculated.</p>

引用

页数：15

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