Eur. Phys. J. D 20, 403-408 (2002)
https://doi.org/10.1140/epjd/e2002-00143-x

Stimulated spectroscopic study on intermolecular vibrations of size-selected benzonitrile clusters

Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan

Corresponding author: ^a ebata@qclhp.chem.tohoku.ac.jp

Received: 28 April 2002
Revised: 30 May 2002
Published online: 13 September 2002

Abstract

Low frequency intermolecular vibrations of benzonitrile-(H₂O), -(CH₃OH), and clusters were observed by stimulated – UV double resonance spectroscopy combined with fluorescence detection. The active vibrations, which appear in the region from 5 to 50 cm^-1, exhibit characteristic frequency shifts depending on the cluster structure and on the cluster size. In benzonitrile-(H₂O) and -(CH₃OH), the lowest frequency band showed a lower frequency shift with an increase of the number of solvent molecules. On the other hand, that of benzonitrile-(CHCl₃) showed a shift to the higher frequency side. Their characteristic shifts are discussed based on the structure of the clusters.