Rotational Control of a Dirhodium-Centered Supramolecular Four-Gear System by Ligand Exchange
作者:Kazuma Sanada、Hitoshi Ube、Mitsuhiko Shionoya
DOI:10.1021/jacs.5b13515
日期:2016.3.9
the building blocks. Herein we report the synthesis and the rotational control of a lantern-type dirhodium complex with circularly arranged four 2,3,6,7,14,15-hexamethyltriptycene carboxylates as gears and two axial ligands as the rate control elements. The rotating rates in solution were markedly affected by the coordination ability and the bulkiness of axial ligands. Notably, the rate changes were
自组装分子机器具有极大的潜力,可以对构建块的耦合运动进行非共价调节。在此,我们报告了以圆形排列的四个 2,3,6,7,14,15-六甲基三苯乙烯羧酸盐作为齿轮和两个轴向配体作为速率控制元件的灯笼型铑配合物的合成和旋转控制。溶液中的旋转速率受配位能力和轴向配体体积的显着影响。值得注意的是,速率变化与二铑中心电子态的变化密切相关。这种具有颜色变化的基于配体交换的旋转运动控制将促进刺激响应金属分子多转子。