Methylaminated potassium fulleride, (CH3NH2)K3C60:: Towards hyperexpanded fulleride lattices

被引:16
作者
Ganin, Alexey Yu.
Takabayashi, Yasuhiro
Bridges, Craig A.
Khimyak, Yaroslav Z.
Margadonna, Serena
Prassides, Kosmas [1 ]
Rosseinsky, Matthew J.
机构
[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England
[2] Univ Durham, Dept Chem, Durham DH1 3LE, England
[3] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1021/ja066295j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Co-intercalation of methylamine molecules into the cubic K3C60 lattice affords the fulleride (CH3NH2)K3C60, which was characterized by Raman and MAS 13C and 1H NMR spectroscopy. The high-resolution synchrotron X-ray powder diffraction technique was employed to determine its crystal structure at ambient temperature. We find that CH3NH2 bonds to K+ ions residing in the pseudo-octahedral interstices, thereby providing an efficient and facile route to hyperexpanded close-packed strongly anisotropic fulleride lattices, while retaining the electronic contact between the C603- anions. Preliminary evidence for the occurrence of a transition to an antiferromagnetic state at low temperature is also presented, consistent with the proximity of the present system to the metal-insulator boundary of the electronic phase diagram of C603- fullerides. Copyright © 2006 American Chemical Society.
引用
收藏
页码:14784 / 14785
页数:2
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