Compatible injection and detection systems for studying the kinetics of excess electron transfer.
[reaction: see text] A design for fast kinetic studies of electron transfer in radical anions is reported. alpha-Hydroxy radicals formed by 355 nm laser flash photolysis of alpha-phenacyl alcohols are deprotonated under basic conditions to give ketyl radical anions that serve as electron injectors in inter- and intramolecular electron-transfer reactions. The 2,2-diphenylcyclopropyl group serves as a reporter. When an electron is injected and transferred such that spin character is adjacent to the reporter, cyclopropyl ring opening gives a readily detected diphenylalkyl radical.
Xu
Libin
L
Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA.
Jin
Jing
J
Lal
Mukul
M
Daublain
Pierre
P
Newcomb
Martin
M
D004583:Electrons; D007700:Kinetics; D015394:Molecular Structure; D013057:Spectrum Analysis