Systematic ligand variation to modulate the electrochemical properties of iron and manganese complexes
作者:Stefan S. Rohner、Niklas W. Kinzel、Christophe Werlé、Walter Leitner
DOI:10.1039/c9dt01343a
日期:——
attached to the 5-position of the quinoline unit increased the catalytic current, but only with a simultaneous increase of the overpotential. However, when a pyrene moiety was attached to the dipicolylamine unit of the ligand, the overpotential decreased with concomitant increase of the catalytic current. Although the manganese complexes showed no reversible formation of a molecular catalytically active
基于dpaq R-配体系统的一系列铁(+ III)和锰(+ II)配合物(dpaq = 2- [双(吡啶-2-基甲基)]氨基-N-喹啉-8-乙酰胺)我们使用循环伏安法(CV)进行了研究,以阐明在水氧化催化的情况下,配体的电子性质如何影响过电势和催化电流。对于Fe络合物,吸电子NO 2或CF 3与喹啉单元5-位连接的基团增加了催化电流,但是同时增加了过电势。然而,当a部分连接至配体的二烯丙基胺单元时,过电势随着催化电流的增加而降低。尽管锰配合物没有显示出可逆形成水氧化分子催化活性物质,但配体支架的变化在很大程度上影响了其电化学行为的相同趋势。