Uniaxial magnetic anisotropy of square-planar chromium(II) complexes revealed by magnetic and HF-EPR studies

Yi-Fei Deng; Tian Han; Zhenxing Wang; Zhongwen Ouyang; Bing Yin; Zhiping Zheng; J Krzystek; Yan-Zhen Zheng

doi:10.1039/c5cc07025b

Uniaxial magnetic anisotropy of square-planar chromium(II) complexes revealed by magnetic and HF-EPR studies

Chem Commun (Camb). 2015 Dec 28;51(100):17688-91. doi: 10.1039/c5cc07025b.

Authors

Yi-Fei Deng¹, Tian Han¹, Zhenxing Wang², Zhongwen Ouyang², Bing Yin³, Zhiping Zheng⁴, J Krzystek⁵, Yan-Zhen Zheng¹

Affiliations

¹ Centre for Applied Chemical Research, Frontier Institute of Science and Technology, and MOE Key Laboratory for Nonequilibrium Synthesis, College of Science, Xi'an Jiaotong University, Xi'an 710054, China. zheng.yanzhen@mail.xjtu.edu.cn.
² Wuhan National High Magnetic Field Centre, Huazhong University of Science and Technology, Wuhan 430074, China.
³ MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China. rayinyin@nwu.edu.cn.
⁴ Department of Chemistry and Biochemistry, The University of Arizona, Tucson Arizona 85721, USA.
⁵ National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.

PMID: 26587566
DOI: 10.1039/c5cc07025b

Abstract

Two mononuclear square-planar Cr(II) complexes are reported, exhibiting field-induced slow magnetic relaxation. The axial zero-field splitting parameter was unambiguously determined by both a high-frequency/field electron paramagnetic resonance (HF-EPR) technique and magnetic measurements. This result represents the first observed single-molecule-magnet behavior in the square planar coordination geometry of any metal ions.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.