A series of lanthanide compounds based on mixed aromatic carboxylate ligands: Syntheses, crystal structures and luminescent properties

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• 作者：Xiang Zhao^a ; Xiao-Yang Yu^a ; ^b ; Tian-Li Chen^a ; Yu-Hui Luo^a ; Jia-Jun Yang^a ; ^b ; Hong Zhang^a ; ^{zhangh@nenu.edu.cn}
• 关键词：Crystal structure ; Lanthanide(III) ; Mixed aromatic carboxylate ; Hydrothermal reaction ; Luminescence
• 刊名：Inorganic Chemistry Communications
• 出版年：2012
• 期刊代码：39_13877003
• 类别：ch
• 出版时间：June, 2012
• 卷：20
• 期：Complete
• 页码：247-251
• 文件大小：596 K

摘要

A series of lanthanide complexes, [LnL¹L²_1/2(H₂O)₂]_n [Ln = La(1), Sm(2), Gd(3), Eu(4), H₂L¹ = 2,4-bis(4-methylbenzoyl)isophthalic acid and H₂L² = 2,5-bis(4-methylbenzoyl)terephthalic acid] have been prepared under hydrothermal conditions and characterized by PXRD, IR, elemental analysis and single crystal X-ray diffraction. Complexes 1-4 are isostructural and comprise paddlewheel dinuclear lanthanide secondary building units linked by four carboxylic groups. L¹ ligands link the dinuclear lanthanide building blocks to form one-dimensional double-stranded looplike chains. The chains are further connected together to form two-dimensional layers by L². Furthermore, the luminescent properties of 2 and 4 were also studied.