Electron Transfer Reactions of Hydrophobic Metallocenes with Aqueous Redox Couples at Liquid−Liquid Interfaces. 1. Solvent, Electrolyte, Partitioning, and Thermodynamic Issues
作者:Heather O. Shafer、Torri L. Derback、Carl A. Koval
DOI:10.1021/jp992793l
日期:2000.2.1
occur at the interface between aqueous (w) and immiscible organic (o) phases. The hydroxymethylferrocene+,0 couple was used as an internal standard in order to compare the formal reduction potentials for a variety of aqueous couples with reduction potentials for the ferrocene couples in organic solvents with dielectric constants ranging from 9 to 35. The ability of various electrolytes to provide adequate
ML63+(w) + Rn-FER(o) → ML62+(w) + RnFER+(o) 形式的电子转移反应,其中 ML63+,2+(w) 是亲水性水基或胺过渡金属基氧化还原对和 RnFER+, 0(o) 是疏水的烷基-铁素氧化还原对,可以发生在水相 (w) 和不混溶的有机相 (o) 之间的界面处。羟甲基二茂铁+,0 电偶用作内标,以比较各种水电偶的形式还原电势与二茂铁电偶在介电常数范围为 9 至 35 的有机溶剂中的还原电势。研究了在水相/有机相中提供足够的电导率,而不引起烷基铁阳离子分配到水相中。