Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, UK.
Dalton Trans. 2010 Jul 28;39(28):6532-41. doi: 10.1039/c0dt00217h. Epub 2010 Jun 15.
A disulfide functionalized bis-ferrocene urea acyclic receptor and disulfide functionalized mono- and bis-ferrocene amide and urea appended upper rim calix[4]arene receptors were prepared for the fabrication of SAM redox-active anion sensors. 1H NMR and diffusive voltammetric anion recognition investigations revealed each receptor to be capable of complexing and electrochemically sensing anions via cathodic perturbations of the respective receptor's ferrocene/ferrocenium redox couple. SAMs of a ferrocene urea receptor 3 and ferrocene urea calixarene receptor 17 exhibited significant enhanced magnitudes of cathodic response upon anion addition as compared to observed diffusive perturbations. SAMs of 17 were demonstrated to sense the perrhenate anion in aqueous solutions.
一种二硫键功能化双二茂铁脲环受体和二硫键功能化单二茂铁酰胺和脲基上缘杯[4]芳烃受体被制备用于制造 SAM 氧化还原活性阴离子传感器。1H NMR 和扩散伏安阴离子识别研究表明，每个受体都能够通过相应受体的二茂铁/二茂铁阳离子氧化还原对的阴极扰动来络合和电化学感应阴离子。与观察到的扩散扰动相比，二茂铁脲受体 3 和二茂铁脲杯[4]芳烃受体 17 的 SAM 在阴离子加入时表现出显著增强的阴极响应幅度。证明 17 的 SAM 可以在水溶液中感应高铼酸盐阴离子。
