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MOLECULAR REDOX SWITCHES BASED ON CHEMICAL TRIGGERING OF IRON TRANSLOCATION IN TRIPLE-STRANDED HELICAL COMPLEXES

机译:基于三重螺旋复合物中铁转运化学触发的分子氧化还原开关

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摘要

THE growing interest in miniaturization of electronic components is stimulating research on molecular assemblies with device-like functionalities(1-5). Molecule-based devices have been reported that might act as sensors(6-8), diodes(9-11), logic gates(12) and switches(5,13-19) Molecular switches should ideally be able to respond controllably and reversibly to external triggers(7,12,14,15,20,21). Here we report the synthesis of molecular redox switches based on helical metal complexes(22-29) in which an iron ion can occupy one of two distinct binding cavities. Reversible translocation of the metal ion between these sites is achieved by chemical oxidation and reduction, owing to the different coordination preferences of the Fe(II) and Fe(III) states, and can be readily monitored spectroscopically. [References: 35]
机译:对电子元件小型化的兴趣日益浓厚,正在刺激人们对具有类似装置功能的分子组装的研究(1-5)。据报道,基于分子的设备可能会充当传感器(6-8),二极管(9-11),逻辑门(12)和开关(5,13-19),理想情况下,分子开关应能够可控和可逆地响应到外部触发器(7,12,14,15,20,21)。在这里我们报告基于螺旋金属络合物(22-29)的分子氧化还原开关的合成,其中铁离子可以占据两个不同的结合腔之一。由于Fe(II)和Fe(III)态的配位偏好不同,这些化学位和金属离子之间可逆的易位是通过化学氧化和还原来实现的,并且可以很容易地进行光谱监测。 [参考:35]

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