Two Stage Magnetic Ordering and Spin Idle Behavior of the Coordination Polymer Co3(OH)2(C4O4)2路3H2O Determined Using Neutron Diffracti

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• 作者：Richard A. Mole ; John A. Stride ; Paul F. Henry ; Markus Hoelzel ; Anatoliy Senyshyn ; Antonio Alberola ; Carlos J. Go虂mez Garcia ; Paul R. Raithby ; Paul T. Wood
• 刊名：Inorganic Chemistry
• 出版年：2011
• 出版时间：March 21, 2011
• 年：2011
• 卷：50
• 期：6
• 页码：2246-2251
• 全文大小：939K
• 年卷期：v.50,no.6(March 21, 2011)
• ISSN：1520-510X

文摘

We report the magnetic structure of two of the mag-netically ordered phases of Co₃(OH)₂(C₄O₄)₂路3H₂O, a coordination polymer that consists of a triangular framework decorated with anisotropic Co(II) ions. The combination of neutron diffraction experiments and magnetic susceptibility data allows us to identify one phase as displaying spin idle behavior, where only a fraction of the moments order at intermediate temperatures, while at the lowest temperatures the system orders fully. This novel magnetic behavior is discussed within the framework of a simple Hamiltonian and representational analysis and rationalizes this multiphase behavior by considering the combination of frustration and anisotropy.