The room-temperature lifetimes of ring-substituted excited diphenylmethyl radicals have been shown to correlate well with the energy gap between the fluorescent lowest excited doublet and the ground state. Attempts to correlate the lifetimes with Hammett constants were unsuccessful.
Absorption, fluorescence, lifetime and reactivity of excited di(p-methylphenyl)methylene in solution
✍ Scribed by Linda J. Johnston; J.C. Scaiano
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 356 KB
- Volume
- 116
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
The absorpuon spsuum. fluorescence and kineucs of cl(p-melhylphenyl)methyleae have been exarmned uang laser photolysis k&niques In acetonitrile tie exerted carbene has a lifetime of 5 6 ns at room temperature and reacts wrth carbon letrachlonde wltb k = 1.1 X IO9 M-' s-l-The absorption of the exated carbene shows h _ = 370 nm, wfule IS fluore5ccnce
peaks at = 517 nm.
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