Activation of electron transfer reduction of p-benzoquinone derivatives by intermolecular regioselective hydrogen bond formation.
Electron transfer reduction of p-benzoquinones by cobalt tetraphenylporphyrin is enhanced significantly by the presence of o-bis(phenylcarbamoylmethyl)benzene (o-L) due to the regioselective hydrogen bond formation between the corresponding semiquinone radical anions and o-L, whereas m- and p-isomers (m-L and p-L) have no effect on the electron transfer equilibrium or the rate.
Fukuzumi
Shunichi
S
Department of Material and Life Science, Graduate School of Engineering, Osaka University, CREST, Japan Science and Technology Corporation (JST), Suita, Osaka 565-0871, Japan. fukuzumi@chem.eng.osaka-u.ac.jp
Kitaguchi
Hironori
H
Suenobu
Tomoyoshi
T
Ogo
Seiji
S