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American Chemical Society, Inorganic Chemistry, 10(54), p. 4588-4590, 2015

DOI: 10.1021/acs.inorgchem.5b00213

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Polymeric Perturbation to the Magnetic Relaxations of the C<sub>2v</sub>-Symmetric [Er(Cp)<sub>2</sub>(OBu)<sub>2</sub>]<sup>−</sup> Anion

Journal article published in 2015 by Tian Han, You-Song Ding, Ji-Dong Leng ORCID, Zhiping Zheng, Yan-Zhen Zheng
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

To test the coordination symmetry effect on the magnetization-reversal barrier trend of Er(III)-based single-ion magnets, the C2v-symmetric organolanthanide anion [Er(Cp)2(O(t)Bu)2](-) has been incorporated with different countercations, resulting in two structures, namely, the discrete [K2(Cp)(18-C-6)2][Er(Cp)2(O(t)Bu)2] (1) and the polymeric [ErK2(Cp)3(O(t)Bu)2(THF)2]n (2), where 18-C-6 = 18-crown-6 ether and Cp = cyclopentadienide. Surprisingly, the polymeric 2 exhibits much stronger field-induced magnetization relaxing behavior compared to the monomeric 1. Such disparate dynamic magnetism is attributable to the subtle coordination environmental perturbations of the central Er(III) ions.