Chiral 1D Dy(III) compound showing slow magnetic relaxation

Herein, we present one chiral Dy(III) compound, namely Dy(L)(3)(1, HL = 2-methylbenzoic acid), synthesized from the achiral HL ligand. Within 1, along a direction the seven-coordinated Dy(III) ion are bridged by double L carboxylate and single L oxygen to give rise to the 1D helical chain. The magne...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 40; no. 47; pp. 12651 - 12655
Main Authors Luo, Feng, Liao, Zhen-wei, Song, Yu-mei, Huang, Hai-xiao, Tian, Xiao-zhao, Sun, Gong-ming, Zhu, Yan, Yuan, Zi-Zun, Luo, Ming-biao, Liu, Shu-juan, Xu, Wen-yuan, Feng, Xue-Feng
Format Journal Article
LanguageEnglish
Published England 21.12.2011
Subjects
Alternating current
Chains
Ferromagnetism
Helical
Ligands
Magnetic measurement
Magnetic permeability
Magnetic relaxation
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Summary:Herein, we present one chiral Dy(III) compound, namely Dy(L)(3)(1, HL = 2-methylbenzoic acid), synthesized from the achiral HL ligand. Within 1, along a direction the seven-coordinated Dy(III) ion are bridged by double L carboxylate and single L oxygen to give rise to the 1D helical chain. The magnetic studies suggest small intra-chain ferromagnetic interactions. Alternating current (AC) magnetic measurements show a frequency dependence of magnetic susceptibilities in both in-phase, χ', and out-of-phase, χ''. However, no obvious peak can be found even under 1000 Oe static field, suggesting the prevalence of quantum tunnelling effect at low temperature.
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ISSN:1477-9226
1477-9234
DOI:10.1039/c1dt11582k