Electrocatalytic reduction of CO<sub>2</sub> by thiophene-substituted rhenium(<scp>i</scp>) complexes and by their polymerized films
作者:Cunfa Sun、Simona Prosperini、Pierluigi Quagliotto、Guido Viscardi、Sam S. Yoon、Roberto Gobetto、Carlo Nervi
DOI:10.1039/c5dt04491j
日期:——
Three novel thiophene substituted bipyridine ligands and their corresponding rhenium complexes were synthesized and tested for the electrocatalytic reduction of CO2. Two complexes underwent oxidative electropolymerization on a glassy carbon electrode (GCE) surface. The conductive polymers chemically deposited on the GCE allow electron transport from the surface to the polymer-attached rhenium catalytic
component of dyes and functional thiophene monomers. Reactionconditions were optimized under both thermal and microwave (MW) activation obtaining good yields (70–93%) using Pd(PPh3)4 as catalyst. Two thienylbipyridine ligands were prepared and the transformation of one of them into a terthiophene-based bipyridine ligand was easily obtained by almost green methods and with very good yield. This clean and