Field-induced Slow Magnetic Relaxation Behavior in a Mononuclear Dy(III) Complex based on 8-Hydroxyquinoline Derivate Ligand

Ji Cheng-Long; Jiang Yu-Xuan; Zhang Jia-Chen; Qi Zi-Yi; Kong Jiao-Jiao; Huang Xing-Cai

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Field-induced Slow Magnetic Relaxation Behavior in a Mononuclear Dy(III) Complex based on 8-Hydroxyquinoline Derivate Ligand

机译：基于8-羟基喹啉衍生物配体的单核Dy（III）复合物中的场诱导的缓慢磁性松弛行为

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摘要

A mononuclear Dy-III compound [Dy(quinbeyz)(NO3)(2)(DMF)] (1) based on 8-hydroxyquinoline derivative ligand [quinbeyz = 8-hydroxyquinoline-2-carboxyaldehyde-(benzoyl)hydrazine] was synthesized and characterized by single-crystal X-ray diffraction analysis. The crystal structure showed that the Dy-III ion of the compound is nine-coordinate in a distorted capped square antiprism arrangement with pseudo-C-4v symmetry. Direct-current (dc) magnetic susceptibilities revealed that compound 1 showed easy axial magnetic anisotropy. The crystal field parameters (CFPs) were obtained from fitting of the magnetic data, and the orientation of the magnetic easy axis of the central Dy-III atom for compound 1 was calculated by the electrostatic model. It can be helpful further to understand the magnetic anisotropy of Dy-III and the magneto-structural relationship. Alternating current (ac) magnetic measurements demonstrated that compound 1 exhibited field-induced slow magnetic relaxation behavior. These results demonstrated that an approach to achieve mononuclear lanthanide single-molecule magnets (SMMs) with pseudo-C-4v symmetry could be effectively constructed by using 8-hydroxyquinoline derivative ligand.

机译：基于8-羟基喹啉衍生物配体的单核Dy-III化合物[DY（喹啉盐）（NO 3）（2）（1）合成了基于8-羟基喹啉衍生物配体[Quinbeyz = 8-羟基喹啉-2-羧酰亚甲醛 - （苯甲酰基）肼]以单晶X射线衍射分析为特征。晶体结构表明，化合物的Dy-III离子是具有伪C-4V对称性的扭曲的凸起的方抗逆转装置中的九个坐标。直流（DC）磁性敏感性显示化合物1显示出易轴向磁各向异性。晶体场参数（CFP）从磁性数据的配合获得，并且通过静电模型计算用于化合物1的中央DY-III原子的磁性容易轴的取向。了解Dy-III的磁各向异性和磁结构关系可以是有帮助的。交流电流（AC）磁性测量表明化合物1表现出现场诱导的缓慢磁性松弛行为。这些结果表明，通过使用8-羟基喹啉衍生物配体，可以有效地构建具有伪C-4V对称性单核镧系元素磁体（SMM）的方法。

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来源
《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2018年第23期|共6页
作者
Ji Cheng-Long; Jiang Yu-Xuan; Zhang Jia-Chen; Qi Zi-Yi; Kong Jiao-Jiao; Huang Xing-Cai;
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作者单位

Yancheng Teachers Univ Sch Chem &

Environm Engn Yancheng 224007 Peoples R China;

Yancheng Teachers Univ Sch Chem &

Environm Engn Yancheng 224007 Peoples R China;

Yancheng Teachers Univ Sch Chem &

Environm Engn Yancheng 224007 Peoples R China;

Yancheng Teachers Univ Sch Chem &

Environm Engn Yancheng 224007 Peoples R China;

Yancheng Teachers Univ Sch Chem &

Environm Engn Yancheng 224007 Peoples R China;

Yancheng Teachers Univ Sch Chem &

Environm Engn Yancheng 224007 Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类化学;
关键词
8-Hydroxyquinoline derivative; Dysprosium; Pseudo-C-4v symmetry; Crystal structure; Slow magnetic relaxation;

机译：8-羟基喹啉衍生物;镝;伪C-4V对称;晶体结构;慢磁性松弛;

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1. Field-induced Slow Magnetic Relaxation Behavior in a Mononuclear Dy(III) Complex based on 8-Hydroxyquinoline Derivate Ligand [J] . Ji Cheng-Long, Jiang Yu-Xuan, Zhang Jia-Chen, Zeitschrift fur Anorganische und Allgemeine Chemie . 2018,第23期

机译：基于8-羟基喹啉衍生物配体的单核Dy（III）复合物中的场诱导的缓慢磁性松弛行为
2. Mononuclear Dy(III) complex based on bipyridyl-tetrazolate ligand with field-induced single-ion magnet behavior and luminescent properties [J] . Wen He-Rui, Liang Fu-Yong, Zou Zheng-Gang, Inorganic Chemistry Communications . 2017,第期

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3. Cu(II)-Dy(III) and Co(III)-Dy(III) based single molecule magnets with multiple slow magnetic relaxation processes in the Cu(II)-Dy(III) complex [J] . Dolai Malay, Ali Mahammad, Titis Jan, Dalton transactions: An international journal of inorganic chemistry . 2015,第29期

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Field-induced Slow Magnetic Relaxation Behavior in a Mononuclear Dy(III) Complex based on 8-Hydroxyquinoline Derivate Ligand

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