Two dinuclear Ln2 compounds: Synthesis, structures, magnetism and luminescence properties

被引：0
|
作者：
Guo, Yuyu [1 ]
Zhang, Shen [2 ]
机构：
[1] Taiyuan Univ Technol, Coll Arts, Jinzhong 030600, Shanxi, Peoples R China
[2] Taiyuan Normal Univ, Coll Chem & Mat, Jinzhong 030619, Shanxi, Peoples R China
来源：
POLYHEDRON | 2024年 / 255卷
关键词：
Dinuclear compounds; Quadrilateral dinuclear core; Magnetic properties; Magnetocaloric effect; SINGLE-MOLECULE MAGNET; REFRIGERATION; CLUSTERS; RELAXATION; GD; TEMPERATURE; NITROGEN; BEHAVIOR; ALLOYS; WHEEL;
D O I：
10.1016/j.poly.2024.116967
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two isostructural lanthanide (Ln) compounds [Ln 2 L 4 (CH 3 COO) 2 (CH 3 OH) 2 ] (Ln = Gd ( 1) , Eu ( 2 ), L - =dibenzoylmethane) have been successfully synthesized and structurally characterized. The two compounds displayed a quadrilateral dinuclear core connected by two ketonic oxygens and each Ln ion was eightcoordinated with two bidentate L ligands, two acetoxy and one methoxy. Variable temperature magnetic susceptibility measurements revealed that a weak antiferromagnetic interaction was existed in compound 1 between Gd(III) ions and the maximum - Delta S m was 20.65 J kg - 1 K -1 for Delta H = 7 T at 2.0 K; while compound 2 only displayed luminescence properties.
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页数：5
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