Synthesis, crystal structures, luminescence and magnetic properties of lanthanide complexes containing the 1,8-bis(2-hydroxybenzamido)-3,6-dioxaoctane ligand
Synthesis, crystal structures, luminescence and magnetic properties of lanthanide complexes containing the 1,8-bis(2-hydroxybenzamido)-3,6-dioxaoctane ligand
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DOI：
10.1039/b108942k
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发表时间：
2002
影响因子：
3.3
通讯作者：
Winnie Po-Wan Lai;W. Wong;Billy King Fai Li;K. Cheah
中科院分区：
文献类型：
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作者：
Winnie Po-Wan Lai;W. Wong;Billy King Fai Li;K. Cheah
1，8-二（2-羟基苯甲酰氨基）-3，6-二氧杂辛烷（H2 L）与稀土硝酸盐在乙腈中反应，高产率地合成了新的双核稀土配合物（Ln = La-Nd，Sm-Yb或Y，1-13），并通过X射线单晶衍射确定了1和2的分子结构。对配体H_2L和双核配合物（Ln = Nd，Sm，Eu，Tb和Dy）进行了电子物理研究，观察到配位水分子的猝灭效应。H2 L和Tb配合物在660 nm OPO激发下表现出上转换过程。还报道了Pr和Gd配合物的磁性。
The reaction of 1,8-bis(2-hydroxybenzamido)-3,6-dioxaoctane (H2L) with lanthanide nitrates in MeCN afforded new binuclear lanthanide complexes (Ln = La–Nd, Sm–Yb or Y, 1–13) in high yields, and the molecular structures of 1 and 2 were established by X-ray crystallography. A photophysical study of the ligand H2L and of the binuclear complexes (Ln = Nd, Sm, Eu, Tb and Dy) has been performed and the quenching effect of coordinated water molecules was observed. The H2L and Tb complex exhibit an up-conversion process under OPO excitation at 660 nm. The magnetic properties of Pr and Gd complexes are also reported.