Laser photolysis study of the spectral-kinetic characteristics of short-lived triplet exciplexes and the mechanism of atomic hydrogen transfer in the course of 2,6-diphenyl-1,4-benzoquinone triplet quenching with aromatic amines
✍ Scribed by V.A. Kuzmin; A.P. Darmanyan; P.P. Levin
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 631 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The spectral-kinetic characteristics of short-lhed triplet exiplexes arising in th? quenching of 2,6diphenyI-1,4-benzoquinone triplet with aromatic amincs: N,N,N',N'-tetramethyl-p-phenylenediamine, triphenylamine and diphenylrtmine hn%e been studied by means of the nanosecond laser photolysis technique. The absorption spectra of trrplet ev5plews exhibit distinct nuxinu cbamcteristic of the absorption spectra of corresponding amine radical cations The state xkitlr complete ch-e transfer gives the basic contribution to the e\ciple\ structures. A detailed anal> sis is presented of the kinetic and thermodynamic dcactibxion chamcteristra of trrplet exciplexes in lo\-polar solvents-