Crystal Structure, Magnetic Properties and Theoretical Investigation of a Dysprsoium Complex Based on 1-Phenyl-3-methyl-4-benzoyl-pyrazol-5-one

被引：2
作者：
Jing Jia-Hui [1 ]
Liu Bin [1 ]
Meng Yin-Shan [2 ,3 ]
Zhang Yi-Quan [4 ]
Lu Hai-Quan [1 ]
Liu Shan-Shan [1 ]
机构：
[1] Beijing Inst Petrochem Technol, Coll Chem Engn, Beijing Key Lab Fuels Cleaning & Adv Catalyt Emis, Beijing 102617, Peoples R China
[2] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
[3] Peking Univ, Coll Chem & Mol Engn, Beijing Key Lab Magnetoelect Mat & Devices, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
[4] Nanjing Normal Univ, Sch Phys Sci & Technol, Jiangsu Key Lab, NSLSCS, Nanjing 210023, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2021年 / 37卷 / 04期
关键词：
beta-diketone; single-molecule magnet; magnetic anisotropy; conjugation effect; BETA-DIKETONATE; ANISOTROPY; BEHAVIOR;
D O I：
10.11862/CJIC.2021.082
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A mononuclear dysprosium complex [Dy(pmbp)(3)(H2O)(2)]center dot CH3CN (1) (Hpmbp=1-phenyl-3-methyl-4-benzoyl-pyrazol-5-one) was synthesized by the slow evaporation method. The complex exhibits a distorted square antiprism geometry around Dy(III)ion, which coordinates to three pmbp(-) and two H2O ligands. The magnetic properties measurements show that 1 can exhibit a slow magnetic relaxation behavior under an applied dc field, and the effective energy barrier was 42 K. The ab intio calculations point out that the magnetic easy axis is along the direction of two pmbp-ligands in trans position, and the g(z) value of low-lying ground state was 18.818. Magneto-structural correlation studies analyzed the influence of conjugation effect in pmbp-ligand on the magnetic anisotropy of complex 1.
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收藏
页码：623 / 628
页数：6
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