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Main Title: Ionization-induced pi -> H site-switching in phenol-CH4 complexes studied using IR dip spectroscopy
Author(s): Miyazaki, Mitsuhiko
Takeda, Akihiro
Schmies, Matthias
Sakai, Makoto
Misawa, Kentaro
Ishiuchi, Shun-ichi
Michels, Francois
Müller-Dethlefs, Klaus
Dopfer, Otto
Fujii, Masaaki
Type: Article
Language Code: en
Abstract: IR spectra of phenol–CH4 complexes generated in a supersonic expansion were measured before and after photoionization. The IR spectrum before ionization shows the free OH stretching vibration (νOH) and the structure of neutral phenol–CH4 in the electronic ground state (S0) is assigned to a π-bound geometry, in which the CH4 ligand is located above the phenol ring. The IR spectrum after ionization to the cationic ground state (D0) exhibits a red shifted νOH band assigned to a hydrogen-bonded cationic structure, in which the CH4 ligand binds to the phenolic OH group. In contrast to phenol–Ar/Kr, the observed ionization-induced π → H migration has unity yield for CH4. This difference is attributed to intracluster vibrational energy redistribution processes.
Issue Date: 2014
Date Available: 24-Jun-2016
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Journal Title: Physical chemistry, chemical physics
Publisher: Royal Society of Chemistry
Publisher Place: Cambridge
Volume: 16
Issue: 1
Publisher DOI: 10.1039/c3cp53533a
Page Start: 110
Page End: 116
EISSN: 1463-9076
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:Inst. Optik und Atomare Physik » Publications

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