Issue 13, 2011
From the journal:

Physical Chemistry Chemical Physics

Mass analyzed threshold ionization spectra of phenol⋯Ar2: ionization energy and cation intermolecular vibrational frequencies

Antonio Armentano,ac   Xin Tong,ac   Mikko Riese,abc   Simon M. Pimblott,abc   K. Müller-Dethlefs,*ac   Masaaki Fujii*d  and  Otto Dopfer*e  

* Corresponding authors

a The Photon Science Institute, The University of Manchester, Alan Turing Building, Oxford Road, Manchester, UK
E-mail: K.Muller-Dethlefs@manchester.ac.uk

b Dalton Nuclear Institute, The University of Manchester, Alan Turing Building, Oxford Road, Manchester, UK

c School of Chemistry, The University of Manchester, Alan Turing Building, Oxford Road, Manchester, UK

d Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama, Japan
E-mail: mfujii@res.titech.ac.jp

e Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
E-mail: dopfer@physik.tu-berlin.de

Abstract

The phenol+⋯Ar2 complex has been characterized in a supersonic jet by mass analyzed threshold ionization (MATI) spectroscopyvia different intermediate intermolecular vibrational states of the first electronically excited state (S1). From the spectra recorded via the S100 origin and the S1βx intermolecular vibrational state, the ionization energy (IE) has been determined as 68 288 ± 5 cm−1, displaying a red shift of 340 cm−1 from the IE of the phenol+ monomer. Well-resolved, nearly harmonic vibrational progressions with a fundamental frequency of 10 cm−1 have been observed in the ion ground state (D0) and assigned to the symmetric van der Waals (vdW) bending mode, βx, along the x axis containing the C–O bond. MATI spectra recorded via the S1 state involving other higher-lying intermolecular vibrational states (σ1s, β3x, σ1sβ1x, σ1sβ2x) are characterized by unresolved broad structures.

Graphical abstract: Mass analyzed threshold ionization spectra of phenol⋯Ar2: ionization energy and cation intermolecular vibrational frequencies

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Article information

DOI
https://doi.org/10.1039/C004497K
Article type
Paper
Submitted
19 Mar 2010
Accepted
22 Sep 2010
First published
09 Nov 2010

Phys. Chem. Chem. Phys., 2011,13, 6071-6076

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Mass analyzed threshold ionization spectra of phenol⋯Ar2: ionization energy and cation intermolecular vibrational frequencies

A. Armentano, X. Tong, M. Riese, S. M. Pimblott, K. Müller-Dethlefs, M. Fujii and O. Dopfer, Phys. Chem. Chem. Phys., 2011, 13, 6071 DOI: 10.1039/C004497K

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