Magnetic Anisotropy and Slow Magnetic Relaxation in Two Mononuclear Octahedral Cobalt(II) Complexes

被引：0
|
作者：
Cui, Hui-Hui [1 ]
Wang, Dou-Zun [1 ]
Li, Shixiang [1 ]
Wang, Leixin [1 ]
Yu, Xinrui [1 ]
Liu, Xiancong [1 ]
Wang, Jin [1 ]
Wang, Miao [1 ]
Tang, Yanfeng [1 ]
机构：
[1] Nantong Univ, Sch Chem & Chem Engn, Nantong 226019, Peoples R China
来源：
MAGNETOCHEMISTRY | 2025年 / 11卷 / 02期
基金：
中国国家自然科学基金;
关键词：
cobalt(II) complexes; magnetic anisotropy; slow magnetic relaxation; SINGLE-ION MAGNETS; 3D;
D O I：
10.3390/magnetochemistry11020011
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two mononuclear octahedral Co(II) complexes, [Co(L)X2] (L = 1-(prop-2-en-1-yl)-1H-imidazole, X = NCS- (1) and NCSe- (2)), have been synthesized and characterized. The central Co(II) ions in two complexes adopt an octahedral geometry, coordinated by four N atoms from the ligand and two N atoms from the anion. Direct-current magnetic data revealed large easy-plane magnetic anisotropy in both 1 and 2. Dynamic magnetic measurements demonstrated that 1 and 2 display field-induced slow magnetic relaxation. For 1 and 2, the Raman mechanism is found to the dominant process in the whole temperature range. Compared to 1, the magnetic relaxation of 2 is faster, likely due to the presence of the hydrogen bonding system in 2.
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页数：11
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