title: Determining the intermolecular structure in the S0 and S1 states of the phenol dimer by rotationally resolved electronic spectroscopy.
abstract: The rotationally resolved UV spectra of the electronic origins of five isotopomers of the phenol dimer have been measured. The complex spectra are analyzed using a fitting strategy based on a genetic algorithm. The intermolecular geometry parameters have been determined from the inertial parameters for both electronic states and compared to the results of ab initio calculations. In the electronic ground state, a larger hydrogen-bond length than in the ab initio calculations is found together with a smaller tilt angle of the aromatic rings, which shows a more pronounced dispersion interaction. In the electronically excited state, the hydrogen-bond length decreases, as has been found for other hydrogen-bonded clusters of phenol, and the two aromatic rings are tilted less toward each other.
authors: Institut für Physikalische Chemie, Universitätsstrasse 26.43.02, 40225 Düsseldorf, Germany. mschmitt@uni-duesseldorf.de
authors: Michael
authors: M
authors: Schmitt
authors: Marcel
authors: M
authors: Böhm
authors: Christian
authors: C
authors: Ratzer
authors: Daniel
authors: D
authors: Krügler
authors: Karl
authors: K
authors: Kleinermanns
authors: Ivo
authors: I
authors: Kalkman
authors: Giel
authors: G
authors: Berden
authors: W Leo
authors: WL
authors: Meerts