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Helicate extension as a route to molecular wires

机译:螺旋延伸作为通往分子线的途径

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We describe the preparation of a helicate containing four closely spaced, linearly arrayed copper(I) ions. This product may be prepared either directly by mixing copper(I) with a set of precursor amine and aldehyde subcomponents, or indirectly through the dimerization of a dicopper(I) helicate upon addition of 1,2-phenylenediamine. A notable feature of this helicate is that its length is not limited by the lengths of its precursor subcomponents: each of the two ligands wrapped around the four copper(I) centers contains one diamine, two dialdehyde, and two monoamine residues. This work thus paves the way for the preparation of longer oligo- and polymeric structures. DFT calculations and electrochemical measurements indicate a high degree of electronic delocalization among the metal ions forming the cores of the structures described herein, which may therefore be described as "molecular wires".
机译:我们描述了包含四个紧密间隔的线性排列的铜离子的螺旋结构的制备。该产品既可以直接通过将铜(I)与一组前体胺和醛亚组分混合来制备,也可以通过在加入1,2-苯二胺时将双铜(I)螺旋体二聚来间接制备。该螺旋产物的显着特征是其长度不受其前体亚组分的长度的限制:包裹在四个铜(I)中心的两个配体中的每一个均包含一个二胺,两个二醛和两个单胺残基。因此,这项工作为制备更长的低聚物和聚合物结构铺平了道路。 DFT计算和电化学测量表明形成本文所述结构的核的金属离子之间高度的电子离域,其因此可被描述为“分子线”。

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