Ronghu Wu, B. Brutschy
May 21, 2004
Citations
1
Influential Citations
19
Citations
Journal
Chemical Physics Letters
Abstract
Abstract Clusters of 2-methoxyphenol (2MP) with one and two water molecules have been studied using R2PI and IR/R2PI. Under microhydration the intramolecular hydrogen bond between the OH and OCH 3 groups is destroyed. One water molecule is inserted between both substituents forming a cyclic structure with 2MP. The OH stretching band of 2MP is red shifted by 122 cm −1 relative to the monomer. Two water molecules form a dimer bridge with less strained H-bonds. The two H-bonded OH stretches of the water dimer exhibit red shifts of 205 and 230 cm −1 . The larger red shifts result from stronger H-bonds, as compared to similar clusters with phenol. The experimental data are supported by the calculations.