Study of chemically induced dynamic nuclear polarization field dependencies in the photoreduction of quinones by amines

✍ Scribed by N.E. Polyakov; T.V. Leshina

• Book ID: 103993416
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 614 KB
• Volume: 55
• Category: Article
• ISSN: 1010-6030
• DOI: 10.1016/1010-6030(90)80017-r

✦ Synopsis

The chemically induced dynamic nuclear polarization (CIDNP) method in high and low magnetic fields was applied to the investigation of the photoreduction of p-benzoquinone and duroquinone by aromatic amines (triphenylamine (TPA) and dimethylaniline). CIDNP demonstrates the appearance of both radical ion and neutral radical reactions. The existence of the pair of neutral semiquinone radicals in the reaction with TPA is associated with the formation of dihydrophenylcarbazole.