Consecutive Ligand‐Based Electron Transfer in New Molecular Copper‐Based Water Oxidation Catalysts
作者:Marcos Gil‐Sepulcre、Pablo Garrido‐Barros、Jan Oldengott、Ignacio Funes‐Ardoiz、Roger Bofill、Xavier Sala、Jordi Benet‐Buchholz、Antoni Llobet
DOI:10.1002/anie.202104020
日期:2021.8.16
oxidation catalysts based on first-row transition metal complexes are highly desirable due to their low cost and their synthetic versatility and tunability through rational ligand design. A new family of dianionic bpy-amidate ligands of general formula H2LNn− (LN is [2,2′-bipyridine]-6,6′-dicarboxamide) substituted with phenyl or naphthyl redox non-innocent moieties is described. A detailed electrochemical
水氧化成分子氧是设计基于阳光分解水的实用装置需要掌握的关键反应之一。在这种情况下,基于第一排过渡金属配合物的水氧化催化剂由于其低成本以及通过合理配体设计的合成多功能性和可调性而非常受欢迎。描述了被苯基或萘基氧化还原非无害部分取代的通式H 2 LN n - (LN是[2,2'-联吡啶]-6,6'-二甲酰胺)的双阴离子双吡啶-酰胺配体的新家族。[(L4)Cu] 2− 的详细电化学分析(L4=4,4'-(([2,2'-联吡啶]-6,6'-二羰基)双(氮杂二基))二苯磺酸盐) 在 pH 11.6 下显示存在用于水氧化催化的大电催化波η=830mV。结合实验和计算证据,支持所有基于配体的过程,在芳基酰胺基团和羟基配体上发生氧化还原事件。