Premium
Electron‐Transfer Transition States: Bound or Unbound—That is the Question!
Author(s) -
Zipse Hendrik
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199716971
Subject(s) - inner sphere electron transfer , outer sphere electron transfer , electron transfer , intermolecular force , transition state , chemical physics , chemistry , quantum , electron , atomic physics , physics , molecular physics , quantum mechanics , photochemistry , molecule , catalysis , ion , biochemistry
A third pathway other than the known outer‐sphere and inner‐sphere processes needs to be considered, according to quantum mechanical studies of electron‐transfer (ET) processes. This new outer‐sphere reaction type, which proceeds via “bound” transition states, shows clear stereochemical preferences as well as significant intermolecular orbital overlap in the transition state. In contrast to inner‐sphere ET processes, no bond formation occurs during the reaction.