Characteristics of Triplet Exciplexes in the Photolysis of 2,6-Diphenyl-1,4-benzoquinone with Amines

The spectral and kinetic characteristics of short-lived triplet exciplexes, formed by quenching the triplet state of acceptor 2,6-diphenyl-1,4-benzoquione (Q) with electron donors 1,4-diazabicyclo[2.2.2]octane and triphenylamine, are studied. The elementary events of the reaction are investigated in...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2018-09, Vol.92 (9), p.1851-1853
Main Authors: Porkhun, V. I., Aristova, Yu. V., Gonik, I. L.
Format: Article
Language:English
Subjects:
Acetonitrile
Amines
Charge transfer
Chemistry
Chemistry and Materials Science
Dibutyl phthalate
Photolysis
Physical Chemistry
Polarity
Quenching
Quinones
Short Communications
Solvents
Tetrahydrofuran
Toluene
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Summary:The spectral and kinetic characteristics of short-lived triplet exciplexes, formed by quenching the triplet state of acceptor 2,6-diphenyl-1,4-benzoquione (Q) with electron donors 1,4-diazabicyclo[2.2.2]octane and triphenylamine, are studied. The elementary events of the reaction are investigated in vitro in different solvents (toluene, dibutyl phthalate, tetrahydrofuran, and acetonitrile). Quenching the quinone (Q) triplet with amine in low-polarity solvents gives rise to short-lived complexes with complete charge transfer.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024418090212