Redox-active ruthenium(ii) σ-arylacetylide wires for molecular electronics incorporating insulating chains
作者:Ahmed Benameur、Pierre Brignou、Emmanuel Di Piazza、Yves-Marie Hervault、Lucie Norel、Stéphane Rigaut
DOI:10.1039/c1nj20235a
日期:——
The preparation and properties of novel carbon-rich mono-, bi-, and tri-metallic ruthenium complexes terminated with protected thiol functions for further surface binding are reported. These new structurally rigid complexes include a short chain (SC) or a long (LC) saturated chain between the terminal linking functions and the conjugated carbon-rich pathway in order to increase contact resistance. They display low oxidation potential, and IR studies of the neutral complexes and of their various oxidized forms indicate the high bridging ligand implication in the oxidation processes and charge delocalization. These molecules are expected to facilitate coulomb blockade behaviour in molecular junctions, and are thus excellent candidates to contribute to the establishment of the structureâproperty relationships of metal containing molecular wires.
本研究报告介绍了新型富碳单金属、双金属和三金属钌络合物的制备方法和特性,这些钌络合物以受保护的硫醇功能为末端,用于进一步的表面结合。这些结构坚硬的新型配合物在末端连接功能和共轭富碳通路之间包含一条短链(SC)或一条长链(LC)饱和链,以增加接触电阻。它们显示出较低的氧化电位,对中性复合物及其各种氧化形式的红外研究表明,桥接配体在氧化过程和电荷迁移中的作用很高。这些分子有望促进分子连接中的库仑阻塞行为,因此是有助于建立含金属分子线的结构与性能关系的极佳候选分子。