Synthesis of Low-Symmetric α-Cobalt(II) Hydroxide-Incorporated Cyanuric Acid Layers with High Neel Temperature and Large Coercivity: Structure and Magnetism

被引：0

作者：

Wang, Qi ^{[1
]}

Meng, Jun-Rong ^{[2
]}

Shen, Yi-Fan ^{[2
]}

Zheng, Ri-Hui ^{[2
]}

Zhu, Hongdan ^{[1
]}

Yao, Peng-Fei ^{[1
,2
]}

Peng, Qian ^{[1
]}

Li, Quan-Wen ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Sch Mat Sci & Engn, State Key Lab Elemento Organ Chem, Tianjin 300071, Peoples R China

[2] Baise Univ, Coll Chem & Environm Engn, Guangxi Key Lab Urban Water Environm, Baise 533000, Guangxi, Peoples R China

来源：

INORGANIC CHEMISTRY | 2024年 / 63卷 / 38期

基金：

中国国家自然科学基金;

关键词：

COBALT HYDROXIDE; COORDINATION; ANTIFERROMAGNETISM;

D O I：

10.1021/acs.inorgchem.4c03201

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

alpha-Cobalt(II) (Co-II) hydroxide (compound 1) incorporating cyanuric acid layers was synthesized via the solvothermal method. 1 exhibited two distinct characteristics, which were different from reported alpha-Co-II hydroxides. (i) The presence of abundant consecutive hydrogen bonds between the adjacent hydroxide layers enhanced the driving force of crystallization along the direction of the c axis. Thus, 1 revealed high crystallinity without the disorder phenomenon. (ii) 1 showed low symmetry. The configuration of Co-Td sites did not follow the regular triangular net. The low symmetry favored the magnetic anisotropy. Thus, 1 revealed ferrimagnetic behavior with a high Neel temperature (T-N = 56.8 K) and coercivity (H-c = 36 kOe at 2 K). The ferrimagnetic behavior of 1 was validated via the Hubbard U correction density functional theory.

引用

页码：17914 / 17920

页数：7