Proton Shift upon One-Electron Reduction in Ruthenium(II)- Coordinated Pterins

摘要

Pterins are ubiquitous heteroaromatic coenzymes that are involved in many biological redox reactions in the vicinity of various metal ions. The redox processes of pterins proceed through proton-coupled electron transfer (PCET) involving the pyrazine moiety, in which up to four protons and electrons are manipulated in a concerted manner. Such processes can convert fully oxidized biopterin into fully reduced 5,6,7,8-tetrahydrobiopterin.