Tetranuclear lanthanide(III) clusters;
Rhombus-shaped arrangement;
Magnetic properties;
Magnetic refrigeration;
Single molecule magnets behaviors;
LANTHANIDE(III) DINUCLEAR COMPLEXES;
RELAXATION;
DYNAMICS;
LN(4);
TRIANGLES;
DESIGN;
SERIES;
D O I:
10.1016/j.poly.2018.11.006
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Two tetranuclear lanthanide(III) clusters, [Gd-4(mu(3)-OH)(2)L-6(dbm)(4)].solvent, (1, Ln = Gd-III, solvent = 2CH(3)CN center dot 2CH(2)Cl(2) and 2, Ln = Dy-III, solvent = 6CH(3)CN; HL = 5-(4-o-hydroxybenzylidene)-8-hydroxylquinoline; dbm = 1,3-diphenyl-1,3-propanedione), were characterized in terms of structure and magnetism. The X-ray structural analysis exhibit that clusters 1 and 2 contain one Ln4 center with rhombus-shaped arrangement, and each Ln(III) ion of them is located in a distorted square-antiprismatic coordination sphere. Magnetic measurements indicate that 1 show magnetic refrigeration (-Delta S-m = 13.91 J kg(-1) K-1 for Delta H = 7.0 T at 3.0 K) and 2 display single molecule magnets behaviors with energy barrier (Delta E/k(B)) of 52.65 K and tau(0) = 7.01 x 10(-7) s. (C) 2018 Elsevier Ltd. All rights reserved.
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Wang, Wen-Min
Duan, Wei-Wei
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Duan, Wei-Wei
Yue, Li-Chun
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Yue, Li-Chun
Wang, Yu-Ling
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Wang, Yu-Ling
Ji, Wen-Yan
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
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Zhang, Cai-Feng
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Hebei Normal Univ Sci & Technol, Dept Chem, Qinhuangdao 066004, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Fang, Ming
Wu, Zhi-Lei
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Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Tianjin Univ, Dept Chem, Tianjin 300072, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Wang, Wen-Min
Wang, Mei-Jiao
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Hao, Sha-Sha
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Shen, Qin-Yu
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Guan, Xiao-Fen
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Zhang, Xiu-Tang
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Wu, Zhi-Lei
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Wang, Wen-Min
Duan, Wei-Wei
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Shanxi Engn Res Ctr Hum Acid, Jinzhong 030619, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Zhang, Cai-Feng
Fang, Ming
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Hebei Normal Univ Sci & Technol, Dept Chem, Qinhuangdao 066004, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Fang, Ming
Wu, Zhi-Lei
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Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China
Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
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Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Tianjin Univ, Dept Chem, Tianjin 300072, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Wang, Wen-Min
Wang, Mei-Jiao
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Ordos Inst Technol, Ordos 017000, Inner Mongolia, Peoples R China
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Chen, Ying
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Yang, Chen
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Wang, Yan-Zi
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Zhang, Quan
Huang, Min
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Huang, Min
Wang, Rui-Feng
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Ordos Inst Technol, Ordos 017000, Inner Mongolia, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
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Fan, Wen-Liang
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Ordos Inst Technol, Ordos 017000, Inner Mongolia, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Fan, Wen-Liang
Hua, Yu-Peng
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Ordos Inst Technol, Ordos 017000, Inner Mongolia, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China
Hua, Yu-Peng
Fang, Ming
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Hebei Normal Univ Sci & Technol, Dept Chem, Qinhuangdao 066004, Hebei, Peoples R ChinaTaiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China