Effects of large magnetic fields on the dynamic behavior of radical ion pairs in a non-viscous solution at room temperature

✍ Scribed by Masatoshi Igarashi; Yoshio Sakaguchi; Hisaharu Hayashi

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 488 KB
• Volume: 243
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)00902-g

✦ Synopsis

Photochemical reactions of triplet xanthone and 2,5-dimethyl-p-benzoquinone with 2-propanol, xanthene, and N,N-diethylaniline in 2-propanol were investigated at 293 K by a nanosecond laser photolysis technique under magnetic fields of 0-10 T. In the reactions with 2-propanol and xanthene hydrogen transfer was found to occur and generated neutral radical pairs showed no or a very small magnetic field effect. On the other hand, electron transfer was found to occur in the reactions with N,N-diethylaniline and the generated radical ion pairs showed fairly large magnetic field effects. Here, reverted magnetic field effects were also observed in 2-propanol like those observed in micellar solutions.