New 2p-3d-4f Chain Compounds [LnZn(hfac)5(NIT-Pyrim)2] constructed from Pyrimidine based Nitronyl Nitroxides

被引：3
作者：
Xie, Jing [1 ,2 ]
Li, Cun [1 ,2 ]
Sun, Guifang [1 ,2 ]
Yang, Meng [1 ,2 ]
Li, Li-Cun [1 ,2 ]
机构：
[1] Nankai Univ, Coll Chem, Dept Chem, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China
[2] Nankai Univ, Coll Chem, Tianjin Key Lab Met & Mol Based Mat Chem, Tianjin 300071, Peoples R China
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2018年 / 644卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Heterometallic; nitronyl nitroxides; Pyrimidine; Lanthanides; Magnetic properties; SINGLE-MOLECULE MAGNET; DY-III; GD-III; FERROMAGNETIC INTERACTIONS; CRYSTAL-STRUCTURE; COMPLEXES; RADICALS; GADOLINIUM(III); CLUSTERS; EXCHANGE;
D O I：
10.1002/zaac.201800212
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The 1:1:2 mixture of Ln(hfac)(3), Zn(hfac)(2), and NIT-Pyrim (hfac = hexafluoroacetylacetonate, NIT-Pyrim = 2-pyrimidine-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) afforded a series of 2p-3d-4f magnetic chains [Ln(hfac)(3)Zn(hfac)(2)(NIT-Pyrim)(2)] [Ln(III) = Gd (1), Ho (2), Yb (3)], in which Zn(hfac)(2) and Ln(hfac)(3) units are bridged by pyrimidine substituted nitronyl nitroxides through their NO moieties and pyrimidine nitrogen atoms. These complexes represent the first examples of 2p-3d-4f complexes with Zn-II ions. Magnetic studies show that there exist ferromagnetic exchange couplings between the coordinated NO groups of radical ligands and the Gd-III ions.
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收藏
页码：827 / 832
页数：6
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