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Time-resolved cidep and ESR studies: quenching of carbonyl triplets by organometal donors

✍ Scribed by J.K. Kochi; K.S. Chen; J.K.S. Wan

Publisher: Elsevier Science
Year: 1980
Tongue: English
Weight: 311 KB
Volume: 73
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(80)80717-2

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✦ Synopsis

Photolyses of solutions of various quinones in

the presence of organotm and organokad mmpounds yield paramagnetic organometal adducts of the qumones. Time-resolved CIDEP observations indicate that the organometals having relatively low lomzation potentials quench the carbonyl tnplet wa a charge-transfer mechanism T1 of the organotin adducts, asest5 mated from the CIDEP measurements, along Hnth their ESR parameters are reported.

The quenchmg of the excited states of carbonyl compounds by way of exclplex formation has been receivmg increased attention [l]. However, the dark reac-

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