Zero-field slow magnetic relaxation from single Co(II) ion: a transition metal single-molecule magnet with high anisotropy barrier

Yuan-Yuan Zhu; Chang Cui; Yi-Quan Zhang; Jun-Hua Jia; Xiao Guo; Chen Gao; Kang Qian; Shang-Da Jiang; Bing-Wu Wang; Zhe-Ming Wang; Song Gao

doi:10.1039/C3SC21893G

Zero-field slow magnetic relaxation from single Co(ii) ion: a transition metal single-molecule magnet with high anisotropy barrier†

Yuan-Yuan Zhu,^ab Chang Cui,^a Yi-Quan Zhang,^a Jun-Hua Jia,^a Xiao Guo,^a Chen Gao,^a Kang Qian,^a Shang-Da Jiang,^a Bing-Wu Wang,*^a Zhe-Ming Wang^a and Song Gao*^a

Author affiliations

* Corresponding authors

^a Beijing National Laboratory of Molecular Science, College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, P. R. China
E-mail: wangbw@pku.edu.cn, gaosong@pku.edu.cn
Web: http://www.chem.pku.edu.cn/mmm/
Fax: +86 10-6275-1708

^b Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, P. R. China

Abstract

An air-stable star-shaped Co^IICo^III₃ complex with only one paramagnetic Co(II) ion in the D₃ coordination environment has been synthesized from a chiral Schiff base ligand. Magnetic studies revealed that this complex exhibits slow magnetic relaxation in the absence of an applied dc field, which is one of the main characteristics of single-molecule magnets (SMMs). The relaxation barrier is as high as 109 K, which is quite large among transition-metal ion-based SMMs. The complex represents the first example of zero-field SMM behavior in a mononuclear six oxygen-coordinate Co(II) complex.

Chemical Science

Zero-field slow magnetic relaxation from single Co(ii) ion: a transition metal single-molecule magnet with high anisotropy barrier†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Zero-field slow magnetic relaxation from single Co(II) ion: a transition metal single-molecule magnet with high anisotropy barrier

Social activity

Search articles by author

Spotlight

Advertisements