NDLI: Magnetic field effects on the triplet exciplex dynamics in the duroquinone-N,N-dimethylaniline derivative systems

Content Provider	Springer Nature Link
Author	Sasaki, Shinya Kobori, Yasuhiro Akiyama, Kimio Tero Kubota, Shozo
Copyright Year	2001
Abstract	Magnetic field effects (MFEs) on the radical yield in the photoinduced electron transfer reaction from the p-halogen derivatives (4XDMA) of N,N-dimethylaniline to the excited triplet state of duroquinone (DQ) have been investigated in alcoholic solutions at room temperature. In 1-propanol and 1-butanol solutions, the radical yields decreased as the magnetic field increased and became nearly constant at 1-1.8 T in the DQ-4BrDMA and DQ-4IDMA systems, suggesting that the spin-orbit coupling interaction due to the heavy atoms governs the radical yield. On the other hand, in the methanol solution MFE due to a radical pair mechanism was observed. We concluded that the key intermediate to determine the radical yield is the triplet exciplex or contact radical ion pair in the 1-propanol and 1-butanol solutions, while it is the solvent-separated radical ion pair in the methanol solution.
Starting Page	155
Ending Page	164
Page Count	10
File Format	PDF
ISSN	09226168
Journal	Research on Chemical Intermediates
Volume Number	27
Issue Number	1-2
e-ISSN	15685675
Language	English
Publisher	Brill Academic Publishers
Publisher Date	2001-01-01
Publisher Place	Leiden
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inorganic Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry

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Magnetic field effects on the triplet exciplex dynamics in the duroquinone-N,N-dimethylaniline derivative systems