Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
Dalton Trans. 2018 May 8;47(18):6580-6589. doi: 10.1039/c8dt00818c.
Neutral nickel bis(dithiolene) complexes, because of their closed-shell character, are usually considered as insulating materials, unless they are formed out of highly delocalized tetrathiafulvalenedithiolate ligands. We describe here an original series of S-alkyl substituted neutral bis(thiazole-4,5-dithiolate) nickel complexes formulated as [Ni(RS-tzdt)2] (R = Me, Et), which organize in the solid state into uniform stacks and exhibit semiconducting behavior, with room temperature conductivities comparable to those reported in the prototypical [Ni(dmit)2] and [Ni(Et-thiazdt)2] neutral complexes. These findings provide new perspectives in the current search for single component molecular conductors.
中性镍双二硫烯配合物，由于其闭壳特性，通常被认为是绝缘材料，除非它们由高度离域的四硫富瓦烯二硫醇配体形成。我们在这里描述了一系列原始的 S-烷基取代的中性双（噻唑-4,5-二硫醇）镍配合物，其组成为[Ni(RS-tzdt)2]（R = Me, Et），它们在固态中形成均匀的堆积并表现出半导体行为，室温电导率可与典型的[Ni(dmit)2]和[Ni(Et-thiazdt)2]中性配合物相媲美。这些发现为当前寻找单组分分子导体提供了新的视角。
