Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Type: Journal article
Title: Jet-cooled multiphoton ionization spectroscopy of the iso-butanal 3s←n Rydberg transition
Other Titles: Jet-cooled multiphoton ionization spectroscopy of the iso-butanal 3s <- n Rydberg transition
Author: Metha, G.
Buntine, M.
Bradley, A.
Morrison, R.
Citation: Journal of Molecular Spectroscopy, 2001; 206(1):73-82
Publisher: Academic Press Inc
Issue Date: 2001
ISSN: 0022-2852
Statement of
G. F. Metha, M. A. Buntine, A. J. Bradley and R. J. S. Morrison
Abstract: We report the results of a study on the vibrational structure in the (n, 3s) Rydberg state of iso-butanal, carried out via 2+1 multiphoton ionization spectroscopy in a supersonic expansion. Spectra were recorded for both the normal species, (CH₃)₂CHCHO, and the deuterated isotopomer, (CH₃)₂CDCHO. The spectra show a complicated vibrational pattern attributable to the gauche (C1) conformer which is known to be 250 cm⁻¹ lower in energy than the more symmetric trans (Cs) conformer. The spectra are dominated by the low-frequency formyl torsion which appears in combination with the two methyl torsions (in-phase and out-of-phase) and with several skeletal modes. Vibrational assignments have been aided by ab initio calculations of the (n, 3s) Rydberg state.
Keywords: Multiphoton ionization; iso-butanal (2-methyl propanal); alkyl aldehydes; Rydberg transition; conformer
Rights: Copyright © 2001 Academic Press. All rights reserved.
RMID: 0020010318
DOI: 10.1006/jmsp.2000.8293
Appears in Collections:Chemistry publications
Environment Institute publications

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.