Phenol-Water

 
This page will mainly be concerned with high resolution LIF spectroscopy of the binary phenol-water cluster. This cluster serves as a model system for intermolecular hydrogen bonding between a polar aromatic and a solvent molecule.
The analysis of the spectrum shows a splitting into two subbands dur to the internal motion of the water moiety. The barrier for this torsion could be determined to be 180 cm-1 in the electronic ground and 130 cm-1 in the electronically excited state. From an analysis of the rotational constantes, the structure could be determined to be translinear, with a slight shortening of the hydrogen bond upon electronic excitation.
 
 

Further details can be found in:
G. Berden, W. Leo Meerts, M. Schmitt and K. Kleinermanns
High Resolution UV spectroscopy of phenol and the hydrogen bonded phenol-water cluster
J. Chem. Phys. 104, 972 (1995)