A Structurally Perfect S = 1/2 Metal-Organic Hybrid Kagomé Antiferromagnet
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- 作者：Emily A. Nytko ; Joel S. Helton ; Peter Mü ; ller ; Daniel G. Nocera
- 刊名：Journal of the American Chemical Society
- 出版年：2008
- 出版时间：March 12, 2008
- 年：2008
- 卷：130
- 期：10
- 页码：2922 - 2923
- 全文大小：89K
- 年卷期：v.130,no.10(March 12, 2008)
- ISSN：1520-5126
文摘
We report the synthesis and magnetic characterization of Cu(1,3-bdc) (1,3-bdc = 1,3-benzenedicarboxylate), a novel structurally perfect S = 1/2 metal-organic hybrid kagomé antiferromagnet exhibiting properties consonant with spin frustration. In the kagomé structure, each monodentate carboxylate ligand bridges two copper ions in the kagomé plane, and the three-atom bridge allows for the shortest known metal-metal distance in any metal-organic hybrid kagomé reported to date. The compound shows antiferromagnetic mean nearest-neighbor superexchange, as evidenced by 
s/entities/THETAV.gif">CW = -33 K. The compound orders ferromagnetically at 2 K and has a frustration parameter, f = 16.5, indicative of a spin-frustrated compound.