IR-induced processes for allyl alcohol dimers involving an intermolecular OH...π Bond in low-temperature matrices |
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| Authors: | Antero Aspiala Timo Lotta Juhani Murto Markku Räsänen |
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| Institution: | Department of Physical Cheimistry, University of Helsinksi, Meritullinkatu l C, SF-00170 Helsinski, Finland |
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| Abstract: | Sharp peaks were observed in the IR spectra of allyl alcohol dimers in the νOH and τOH regions in low-temperature Ar and N2 matrices. In Ar a peak at 3587 cm?1 was found to increase in intensity upon annealing and decrease upon IR irradiation; it is concluded that this peak is due to an OH...π interaction (of a cyclic structure) present in part of the dimers. This is the first time such an interaction and photoprocess have been found for an alcohol in matrices. Also a faster photo-process was found. Confomer changes in the monomers accompany the photoprocess in allyl alcohol dimers. |
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