Quenching of triplet states of aromatic hydrocarbons by copper(II) 1,3-diketonates in solution

✍ Scribed by B. Marciniak; H.-G. Löhmannsröben

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 686 KB
• Volume: 148
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(88)87255-5

✦ Synopsis

The rate constants for quenching of the triplet states of eleven different aromatic hydrocarbons by copper(I1) bis(2,4-pentanedionate) and copper(U) bis( l,l, 1,5,5,5-hexafluoro-2,4-pcntanedionate) in solution have been measured by laser flash photolysis. The involvement of electron-and energy-transfer mechanisms in the quenching process is elaborated and corresponding transmission coeflicients and intrinsic barriers are obtained: