Issue 22, 2001
From the journal:

Physical Chemistry Chemical Physics

Pulsed field ionization zero kinetic energy photoelectron study on methylanisole molecules in a supersonic jet

Shin-ichi Kinoshita,a   Hiroshi Kojima,a   Tadashi Suzuki,a   Teijiro Ichimura,*a   Keigo Yoshida,b   Makoto Sakaib  and  Masaaki Fujiib  

* Corresponding authors

a Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ohokayama, Meguro-ku, Tokyo, Japan
E-mail: tichimur@chem.titech.ac.jp

b Institute for Molecular Science, Myodaiji, Okazaki, Japan

Abstract

Pulsed field ionization zero kinetic energy (PFI-ZEKE) photoelectron spectra were measured for jet-cooled o-, m-, and p-methylanisoles for the first time. The low-frequency bands observed at around the origin band in the spectra were assigned to the methyl internal rotational bands of the cations. The potential curves and the Franck–Condon factors for the methyl internal rotational motion were calculated by the one-dimensional free-rotor approximation. The potential barrier height was found to change drastically on ionization, suggesting that the electronic structure should mainly affect the potential barrier of the methyl internal rotation.

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Article information

DOI
https://doi.org/10.1039/B105719G
Article type
Paper
Submitted
29 Jun 2001
Accepted
12 Sep 2001
First published
29 Oct 2001

Phys. Chem. Chem. Phys., 2001,3, 4889-4897

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Pulsed field ionization zero kinetic energy photoelectron study on methylanisole molecules in a supersonic jet

S. Kinoshita, H. Kojima, T. Suzuki, T. Ichimura, K. Yoshida, M. Sakai and M. Fujii, Phys. Chem. Chem. Phys., 2001, 3, 4889 DOI: 10.1039/B105719G

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