Influence of chelating ligands on photomagnetic properties of two erbium(Ⅲ)coordination polymers  

作　　者：Xiaoshuang Gou Zhonghang Chen Jialong Jiang Ning Liu Wenlong Lan Yuewei Wu Peng Cheng Wei Shi 

机构地区：[1]Department of Chemistry,Key Laboratory of Advanced Energy Materials Chemistry(MoE)and Frontiers Science Center for New Organic Matter,College of Chemistry,Nankai University,Tianjin,300071,China

出　　处：《Journal of Rare Earths》2025年第3期552-555,I0005,共5页稀土学报(英文版)

基　　金：Project supported by the National Natural Science Foundation of China(21971123,21931004,92156002)。

摘　　要：The magnetization dynamics of lanthanide coordination compounds are fundamentals governing their potential applications such as information storage or molecular switches.Herein,two two-dimensional coordination polymers[Er(CA)_(1.5)(bpy)(DMF)]_(n)(1)and[Er(CA)_(1.5)(phen)(DMF)]_(n)(2)(H_(2)CA=2,5-dichloro-3,6-dihydroxy-p-quinone,bpy=2,2'-bipyridine,phen=1,10-phenanthroline)were synthesized and fully characterized.By the irradiation of ultraviolet light,1 and 2 were converted to la and 2a which contain light-generated radicals,inducing an increase ofχ_(MT)at room temperature.A detailed study of the dynamic magnetic property shows that the magnetization dynamics observed for 1 and la are dominated by Raman process,but Orbach and Raman processes are observed in 2 and 2a.The structural factors influencing the magnetic properties of this photomagnetic system are discussed.

关 键 词：Coordination polymers LANTHANIDE Photomagnetic properties Magnetization dynamics Rare earths 

分 类 号：O641.3[理学—物理化学]