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.

引用

页数：11