Issue 10, 2018

Rationalization of single-molecule magnet behavior in a three-coordinate Fe(iii) complex with a high-spin state (S = 5/2)

Abstract

Here we show that in the perfect trigonal-planar geometry the iron(III) complex Fe[N(SiMe3)2]31 simultaneously has a high spin state (S = 5/2) and uniaxial magnetic anisotropy (with a zero-field splitting parameter D = −1.15(2) cm−1), as revealed by the dc SQUID magnetic susceptibility measurement, high frequency/field electron paramagnetic resonance (HF-EPR) spectroscopy and ab initio theoretical calculations. Moreover, ac magnetization data reveal a dynamic magnetic behavior with an energy barrier for magnetization reversal of 6.91(5) cm−1, and pulsed high-field magnetization shows a magnetic bistability at low-temperatures. Thus, 1 is confirmed to be a single-molecule magnet.

Graphical abstract: Rationalization of single-molecule magnet behavior in a three-coordinate Fe(iii) complex with a high-spin state (S = 5/2)

Supplementary files

Article information

Article type
Research Article
Submitted
16 Jul 2018
Accepted
16 Aug 2018
First published
17 Aug 2018

Inorg. Chem. Front., 2018,5, 2486-2492

Rationalization of single-molecule magnet behavior in a three-coordinate Fe(III) complex with a high-spin state (S = 5/2)

N. Ge, Y. Zhai, Y. Deng, Y. Ding, T. Wu, Z. Wang, Z. Ouyang, H. Nojiri and Y. Zheng, Inorg. Chem. Front., 2018, 5, 2486 DOI: 10.1039/C8QI00701B

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