화학공학소재연구정보센터
Journal of Physical Chemistry A, Vol.110, No.17, 5613-5619, 2006
Resonance Raman spectrum of the solvated electron in methanol: Simulation within a cluster model
The microsolvation of the CH3OH2 hypervalent radical in methanol clusters has been investigated by density functional theory. It is shown that the CH3OH2 radical spontaneously decomposes within methanol clusters into protonated methanol and a localized solvated electron cloud. The geometric and electronic structures of these clusters as well as their vibrational frequencies have been characterized. Resonance Raman intensities, associated with the s -> p transition of the unpaired electron, have been estimated for CH3OH2Mn (M = CH3OH, n = 1- 3) clusters. It is shown that with increasing cluster size the simulated spectra converge toward the resonance Raman spectrum of the solvated electron in methanol measured recently by Tauber and Mathies ( J. Am. Chem. Soc. 2004, 126, 3414). The results suggest that CH3OH2Mn clusters are useful finite-size model systems for the computational investigation of the spectroscopic properties of the solvated electron in liquid methanol.