Assessment of permethylated transition-metal sandwich complexes as internal reference redox systems in ionic liquids.
Assessment of permethylated transition-metal sandwich complexes as internal reference redox systems in ionic liquids.
复制标题
全甲基化过渡金属夹心配合物作为离子液体中内参氧化还原系统的评估。
DOI：
10.1039/c2cp43177g
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
C. Pozo‐Gonzalo
中科院分区：
文献类型：
--
作者：
A. Torriero;J. Sunarso;M. Forsyth;C. Pozo‐Gonzalo
首次报道了十甲基钴DMCC(+)在不同离子液体中的伏安行为。研究了它与十甲基二茂铁DMFC的氧化还原电势，结果表明，这两种过渡金属夹心配合物的中点电势之差与离子液体组成无关。相反，在类似的离子液体中，二茂铁和钴的中点电位相对于DMFC的中点电位有不同的变化。此外，还讨论了DMFC(0/+)和DMCC(+/0)作为内参比氧化还原体系在离子液体中应用的不同局限性。由此，观察到的DMFC和氧之间的自发反应对于建立DMFC应用的特定条件具有重要的意义。
This work reports the voltammetric behaviour of decamethylcobaltocenium, DmCc(+), in different ionic liquids for the first time. Its redox potential was studied relative to that of decamethylferrocene, DmFc, and it is shown that the difference in the mid-point potential between these two permethylated transition-metal sandwich complexes is independent of the ionic liquid composition. A variable difference in mid-point potential, in contrast, was observed for ferrocene and cobaltocenium relative to that of DmFc in similar ionic liquids. In addition, different limitations in the application of DmFc(0/+) and DmCc(+/0) couples as internal reference redox systems in ILs are discussed. From these, the observed spontaneous reaction between DmFc and oxygen leads to important implications toward the establishment of particular conditions for DmFc applications.