Marcus equation In the late 1950s to early 1960s Rudolph A. Marcus developed a theory for treating the rates of outer-sphere electron-transfer reactions. Outer-sphere reactions are reactions in which an electron is transferred from a donor to an acceptor without any chemical bonds being made or broken. (Electron-transfer reactions in which bonds are made or broken are referred to as inner-sphere reactions.) Marcus derived several very useful expressions, one of which has come to be known as the Marcus cross-relation or, more simply, as the Marcus equation. It is widely used for correlating and predicting electron-transfer rates. For his contributions to the understanding of electron-transfer reactions, Marcus received the 1992 Nobel Prize in Chemistry. This paper discusses the development and use of the Marcus equation. Topics include self-exchange reactions; net electron-transfer reactions; Marcus cross-relation; and proton, hydride, atom and group transfers.
|OSTI Identifier:||OSTI ID: 677005|
ON: DE99000575; BR: KC030101; TRN: AHC29821%%138
|DOE Contract Number:||AC02-98CH10886|
|Resource Type:||Technical Report|
|Resource Relation:||Other Information: PBD: |
|Research Org:||Brookhaven National Lab., Upton, NY (United States)|
|Sponsoring Org:||USDOE Office of Energy Research, Washington, DC (United States)|
|Country of Publication:||United States|
|Subject:||40 CHEMISTRY; ELECTRON TRANSFER; CHEMICAL REACTIONS; EQUATIONS; CHEMICAL REACTION KINETICS; FREE ENERGY|
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