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在极低温度下具有电、磁以及结构方面有趣的性能的材料,其范围被昂德希尔(Underhill)及其合作者扩展了。在最近出版的一期《自然》杂志(Nature,324卷,547—549页,1986年)上,昂德希尔描述了首次发现的这一具有完整氧化态的二维有机金属化合物。对于这类能够导电的二维体系的合成及固态性能的研究将有助于阐明固体化学中许多基本现象。多数有机或金属有机固体是电绝缘体,但是近年来越来越多的具有高导电性能以及金属的典型特性的一类固体受到人们的很大重视。这种金属行为是由于晶体中沿高度有序的堆积结构的富π-电子体系发生分子间大面积重叠而造成的。这些材料具有高度的各向异性性,因而被称做准一维分子金属。
The range of materials that are electrically, magnetically and structurally interesting at very low temperatures has been extended by Underhill and its collaborators. In a recent issue of Nature, vol. 324, pp. 547-549 (1986), Onther Hill described the first discovery of this two-dimensional organometallic compound with its complete oxidation state. Studies on the synthesis and solid state properties of these two-dimensional systems that can conduct electricity will help to elucidate many of the fundamental phenomena in solid chemistry. Most organic or metallic organic solids are electrical insulators, but in recent years more and more of a class of solids with high electrical conductivity and the typical properties of metals have received considerable attention. This metallic behavior results from the large intermolecular overlap of the π-electron rich systems along highly ordered packing structures in the crystal. These materials have a high degree of anisotropy and are therefore called quasi-one-dimensional molecular metals.