Abstract
The formation of the primary photoproduct (the nitronic acid) in the photo-rearrangement of o-nitrobenzylesters was investigated by time-resolved resonance Raman (TR 3) spectroscopy in a polar, aprotic and polar, protic solvent. In acetonitrile, only nitronic acid is formed with a lifetime of 80 μs, whereas in methanol the nitronic acid occurs in thermal equilibrium with the nitronate anion, which has a lifetime of 100 μs.
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Schedule a callMore From: Journal of photochemistry and photobiology. A, Chemistry
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