Polymeric Perturbation to the Magnetic Relaxations of the C2v-Symmetric [Er(Cp)2(OBu)2](-) Anion.
Inorg Chem
; 54(10): 4588-90, 2015 May 18.
Article
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| MEDLINE
| ID: mdl-25928354
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.
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01-internacional
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MEDLINE
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En
Revista:
Inorg Chem
Año:
2015
Tipo del documento:
Article
País de afiliación:
China