Simultaneous Modulation of Magnetic and Dielectric Transition via Spin-Crossover-Tuned Spin Arrangement and Charge Distribution

Angewandte Chemie
Hui ZhengTao Liu

Abstract

Magnetic and dielectric properties have been tuned simultaneously by external stimuli with rapid and sensitive response, which is crucial to monitor the magnetic state via capacitive measurement. Herein, positive charged FeII ions were linked via negative charged [(Tp)FeIII (CN)3 ]- (Tp=hydrotris(pyrazolyl)borate) units to form a neutral chain. The spin-crossover (SCO) on FeII sites could be sensitively triggered via thermal treatment, light irradiation, and pressure. SCO switched the spin state of the FeII ions and antiferromagnetic interactions between FeIII and FeII ions, resulting in significant change in magnetization. Moreover, SCO induced rotation of negative charged [(Tp)FeIII (CN)3 ]- units, generating dielectric anomaly due to geometric change of charges distribution. This work provides a rational way to manipulate simultaneous variations in magnetic and dielectric properties utilizing SCO as an actuator to tune spin arrangement, magnetic coupling, and charge distribution.

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Citations

Jul 3, 2019·Chemical Communications : Chem Comm·Hui-Ying SunTao Liu
Jul 6, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Taqing ShiZhao-Xi Wang
Feb 6, 2020·Chemical Communications : Chem Comm·Zi-Shuo YaoJun Tao
Jun 25, 2020·Chemistry : a European Journal·Zhi-Guo GuHui-Shu Lu
Aug 20, 2020·Chemistry : a European Journal·Verónica Jornet-MolláFrancisco M Romero
Oct 29, 2020·Angewandte Chemie·María José Heras OjeaRichard A Layfield
Feb 26, 2020·Chemical Science·Yan-Cong ChenMing-Liang Tong
Jun 25, 2021·Chemical Science·Verónica Jornet-MolláFrancisco M Romero
Apr 12, 2019·Accounts of Chemical Research·Yin-Shan Meng, Tao Liu
Dec 5, 2018·The Journal of Physical Chemistry Letters·Yang-Hui LuoBai-Wang Sun
Mar 11, 2020·ACS Applied Materials & Interfaces·Jia-Ying WangBai-Wang Sun
Nov 7, 2019·Journal of the American Chemical Society·Izar Capel BerdiellMalcolm A Halcrow
Apr 14, 2020·The Journal of Physical Chemistry. a·S M Ostrovsky, S I Klokishner
Oct 28, 2020·Inorganic Chemistry·Jiong YangYuan-Zhu Zhang
Sep 22, 2021·Inorganic Chemistry·Izar Capel BerdiellMalcolm A Halcrow

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