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- W2020076902 abstract "The formation and decay of a ketene intermediate photochemically formed from o-nitrobenzaldehyde has been studied by femtosecond UV/Vis and IR spectroscopy. The ketene is formed predominantly within a few 100 fs and to a minor extent within ∼200 ps via the recombination of a triplet phased bi-radical. In tetrahydrofuran solution the ketene intermediate is seen to form a secondary intermediate with biphasic kinetics. The first phase of this decay occurs within a few picoseconds. It can be attributed to the reaction of vibrationally excited ketenes. The second phase characterized by a time constant of 2 ns is due to the reaction of thermalized molecules. In 2-butanol solution the lifetime of the thermalized ketene is only ∼60 ps and the rapid and the slow phases of the decay start to merge." @default.
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- W2020076902 date "2009-01-01" @default.
- W2020076902 modified "2023-09-26" @default.
- W2020076902 title "Impact of vibrational excitation on the kinetics of a nascent ketene" @default.
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- W2020076902 doi "https://doi.org/10.1039/b915451e" @default.
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