Proton-coupled electron transfer

A Proton-coupled electron transfer (PCET) is a chemical reaction that involves the transfer of electrons and protons. The term was originally coined for single proton, single electron processes that are concerted, but the definition has relaxed to include many related processes. Reactions that involve the concerted shift of a single electron and a single proton are often called Concerted Proton-Electron Transfer or CPET. A Proton-coupled electron transfer (PCET) is a chemical reaction that involves the transfer of electrons and protons. The term was originally coined for single proton, single electron processes that are concerted, but the definition has relaxed to include many related processes. Reactions that involve the concerted shift of a single electron and a single proton are often called Concerted Proton-Electron Transfer or CPET.