Octahedral erbium and ytterbium ion encapsulated in phosphorescent iridium complexes showing field-induced magnetization relaxation

被引：8
|
作者：
Zeng, Dai [1 ,2 ]
Fan, Kun [1 ]
Wang, Lu-Ping [1 ]
Bao, Song-Song [1 ]
Ren, Min [1 ]
Zheng, Li-Min [1 ]
机构：
[1] Nanjing Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Adv Microstruct, State Key Lab Coordinat Chem, Nanjing 210023, Jiangsu, Peoples R China
[2] Henan Univ Chinese Med, Coll Pharm, Zhengzhou 450046, Henan, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 484卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
5d-4f complex; Luminescence; Single ion magnet; Phosphonate; Iridium; Lanthanide; SINGLE-MOLECULE MAGNET; LANTHANIDE PHOSPHONATES; ENERGY-TRANSFER; ANISOTROPY; LUMINESCENCE; 3D; FLUORESCENCE; EMISSION; LIGANDS; DY(III);
D O I：
10.1016/j.jmmm.2019.03.100
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Four isostructural heptanuclear clusters [LnIr(6)(ppy)(12)(bpp)(2)(bppH)(4)](CF3SO3) center dot xH(2)O (Ir(6)Ln, Ln= Eu, Tb, Er, Yb) are reported, where the lanthanide ions are six-coordinated by the phosphonate oxygen donors from six [Ir (ppy)(2)(bpp)] (ppy(-) = 2-phenylpyridine, bpp(2-) = 2-pyridylphosphonate) chromophores. All show phosphorescence originating from the IrIII moieties. For compounds Ir6Er and Ir6Yb, field-induced slow magnetization relaxation is also observed, thus providing the first examples of Ir-Er or Ir-Yb complexes showing bifunctional phosphorescence and field-induced single ion magnet behaviors.
引用
收藏
页码：139 / 145
页数：7
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