A Rare Water and Hydroxyl-Extended One-Dimensional Dysprosium(III) Chain and Its Magnetic Dilution Effect

Yan Li; Pu Zhao; Shan Zhang; Rui Li; Yi-Quan Zhang; En-Cui Yang; Xiao-Jun Zhao

doi:10.1021/acs.inorgchem.7b01058

A Rare Water and Hydroxyl-Extended One-Dimensional Dysprosium(III) Chain and Its Magnetic Dilution Effect

Inorg Chem. 2017 Aug 21;56(16):9594-9601. doi: 10.1021/acs.inorgchem.7b01058. Epub 2017 Jul 31.

Authors

Yan Li¹, Pu Zhao¹, Shan Zhang¹, Rui Li¹, Yi-Quan Zhang², En-Cui Yang¹, Xiao-Jun Zhao^{1

3}

Affiliations

¹ College of Chemistry, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University , Tianjin 300387, People's Republic of China.
² Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University , Nanjing 210023, People's Republic of China.
³ Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071, People's Republic of China.

PMID: 28759247
DOI: 10.1021/acs.inorgchem.7b01058

Abstract

A novel water and hydroxyl-extended one-dimensional dysprosium(III) chain was hydrothermally obtained, which exhibits a relatively high spin-reversal energy barrier of 88.7 K and intrachain ferromagnetic interaction with the coupling constant J_exch = 3.04 cm^-1 calculated by fitting magnetic susceptibilities using POLY_ANISO program based on ab initio calculations. To deeply understand the respective role of the single-ion anisotropy and intrachain exchange on the effective energy barrier, three crystallographically isostructural analogues containing isotropic Gd(III)-, diamagnetic Y(III)-, as well as Y(III)-doped Dy_0.05Y_0.95 were prepared and characterized structurally and magnetically. Due to the absence of significant intrachain exchange interaction, the effective energy barrier of the Dy_0.05Y_0.95 decreased by 9.9 K as compared with that of parent dysprosium(III) chain. Thus, it can be concluded that the intrachain ferromagnetic coupling and the magnetic anisotropy of the Dy(III) ion synergistically enhance the effective energy barrier of the dysprosium(III) chain, in which the single-ion anisotropy becomes more predominant.