Issue 1, 2017
From the journal:

Inorganic Chemistry Frontiers

Tuning quantum tunnelling of magnetization through 3d–4f magnetic interactions: an alternative approach for manipulating single-molecule magnetism†

Jing Li,a   Rong-Min Wei,a   Tian-Cheng Pu,b   Fan Cao,a   Li Yang,a   Yuan Han,a   Yi-Quan Zhang,*c   Jing-Lin Zuo ORCID logo *a  and  You Song*a  

* Corresponding authors

a State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Xianlin Road 163, Nanjing 210023, P. R. China
E-mail: yousong@nju.edu.cn, zuojl@nju.edu.cn

b Material Science and Chemical Engineering Department, Stony Brook University, Stony Brook, NY, 11794 USA

c Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology Department, Nanjing Normal University, Wenyuan Road 1, Nanjing 210046, P. R. China
E-mail: zhangyiquan@njnu.edu.cn

Abstract

The magnetic relaxation and magnetization blocking barriers of butterfly complexes, [Dy2Zn2(L)4(NO3)2(CH3OH)2] (1), [Dy2Mn2(L)4(NO3)2(DMF)2] (2) and [Dy2Co2(L)4(NO3)2(DMF)2]·2DMF (3) (H2L = (E)-2-ethoxy-6-(((2-hydroxyphenyl)imino)methyl)phenol), were systematically investigated. The change of SMM behavior originating from the purposeful replacement of two ZnII sites in 1 with MnII and CoII was elucidated by a combined experimental and theoretical study. The quantum tunnelling of magnetization (QTM) was observed in 1. Contrarily, it was quenched in 2 and 3 by spin–spin exchange. A detailed comparative study on these closely-related model complexes reveals the remarkable changes of the ligand field splitting, anisotropy of the Dy-coordinated moiety and the total exchange spectrum due to the replacement of ZnII with CoII and MnII.

Graphical abstract: Tuning quantum tunnelling of magnetization through 3d–4f magnetic interactions: an alternative approach for manipulating single-molecule magnetism

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Article information

DOI
https://doi.org/10.1039/C6QI00407E
Article type
Research Article
Submitted
30 Sep 2016
Accepted
02 Nov 2016
First published
03 Nov 2016

Inorg. Chem. Front., 2017,4, 114-122

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Tuning quantum tunnelling of magnetization through 3d–4f magnetic interactions: an alternative approach for manipulating single-molecule magnetism

J. Li, R. Wei, T. Pu, F. Cao, L. Yang, Y. Han, Y. Zhang, J. Zuo and Y. Song, Inorg. Chem. Front., 2017, 4, 114 DOI: 10.1039/C6QI00407E

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