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The annihilation of 1Δg oxygen by excited triplet state sensitizers

✍ Scribed by C.K. Duncan; D.R. Kearns

Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
385 KB
Volume
12
Category
Article
ISSN
0009-2614

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✦ Synopsis

Sin&t oxygen in the 'A state is rapidly quenched in the gas pkaw: by triplet state sensitizers such as quinoxaline and -r aphthalene. The bimolecular rate constants for the quenching reaction are 7 x 101oMM'l~~ -' and 9 x 101'M" set for quinoxaline and naphthaIene, respectively. Relaxation to % lower lying charge-transfer state of the sensititeroxygen coinplex is suggested as the most plausible mecknism iOr the loss of IA.

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