Abstract
It is known that 2-allyiphenol photoisomerizes to cyclic ethess in nonpolar solvents. It has been suggested that the reaction proceeds by an intra- molecular proton transfer between the hydroxy] hydrogen and the allyl double bond. The excitation/ionization (time-of-flight mass spectrum) (TOFMS) in Fig, 1 suggests there is only one conformer of this molecule. Vibrational progressions of 50 cm−1 are observed and interpreted in terms of an interaction between the allyl double bond and the hydroxyl hydrogen. A semiempirical MNDO calculation is consistent with this interpretation. The possibility of the intramolecular proton transfer is investigated by 1) looking for red-shifted threshold photoionization and (2) looking for red-shifted emission.
© 1991 Optical Society of America
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