Function and Property of Columnar Trinuclear Metal Clusters

为了评价金属离子团簇的电子传递能力，在合成过程中必须精确控制组成金属离子的数量和排列。我们成功地将三核Au(I)3配合物分子层置于有机柱状配位笼中制备了Au_9离子簇。此外，将三个三核Au(I)3配合物与两个Ag(I)离子交替层置，构建了一个三层Au_3-Ag-Au_3-Ag-Au_3异质离子簇。这些团簇结构是通过x射线晶体学分析明确确定的。Au3n离子团簇（n = 1-3）的单分子电导值远高于芳香分子（4,5-吡啶二酮）的π堆叠，并能实现较长的电子传递。

To evaluate electron transport ability of metal ion clusters, the number and arrangement of the constituent metal ions must be precisely controlled in the synthesis. We succeeded in preparing Au_9 ion clusters by layering three molecules of trinuclear Au(I)3 complexes within an organic-pillared coordination cage. Moreover, by layering three trinuclear Au(I)3 complexes and two Ag(I) ions alternatively, a triple-decker Au_3-Ag-Au_3-Ag-Au_3 hetero ion cluster was constructed. These cluster structures were unambiguously determined by X-ray crystallographic analysis. Au3n ion clusters (n = 1-3) exhibited much higher values in the single-molecule conductance than π-stacks of aromatic molecules (4,5-pyrenedione) and enabled a long electron transport.