Oxygen quenching of the lowest triplet state of N-methylthioacridone

Emission, assigned as ã 3A 2 → X̃ 1A 1 phosphorescence, is observed when N-nnethylthioacridone is excited in any of its visible or near UV absorption bands in hydrocarbon solution. The oxygen quenching of the thione triplet ( E T = 14900 cm −1) is observed to proceed with k q ≈ 0.5 k d. Possible mec...

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Bibliographic Details
Published in:Chemical physics letters 1981, Vol.77 (1), p.99-102
Main Authors: Safarzadeh-Amiri, A., Condirston, D.A., Verrall, R.E., Steer, R.P.
Format: Article
Language:English
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Summary:Emission, assigned as ã 3A 2 → X̃ 1A 1 phosphorescence, is observed when N-nnethylthioacridone is excited in any of its visible or near UV absorption bands in hydrocarbon solution. The oxygen quenching of the thione triplet ( E T = 14900 cm −1) is observed to proceed with k q ≈ 0.5 k d. Possible mechanisms of oxygen quenching are discussed.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(81)85608-4