An unusual zwitterionic, diradical intermediate in photochemical electron-transfer substitution reactions.
An unusual zwitterionic diradical intermediate complex R*...X-...HR'B*+ is generated during the photoinduced electron-transfer substitution reaction between alkyl halides (RX) and Lewis bases (HR'B). This reaction intermediate was observed for the 1-chloroadamantane and tert-butylamine system in a hydrocarbon glass at 25 K by electron spin resonance spectroscopy. Ab initio density functional calculations were carried out to examine the physical and electronic structure of the intermediate.
Chemistry Department, Western Michigan University, Kalamazoo, MI 49008, USA. john.b.miller@wmich.edu
John B
JB
Miller
Jeremy
J
Breeding
Thomas J
TJ
Smith