Isobutyl acetate: electronic state spectroscopy by high-resolution vacuum ultraviolet photoabsorption, He(I) photoelectron spectroscopy and ab initio calculations

The high-resolution vacuum ultraviolet photoabsorption spectrum of isobutyl acetate, C 6 H 12 O 2 , is presented here and was measured over the energy range 4.3–10.8 eV (290–115 nm). Valence and Rydberg transitions with their associated vibronic series have been observed in the photoabsorption spect...

Full description

Saved in:
Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2017-05, Vol.71 (5), p.1-8, Article 129
Main Authors: Śmiałek, Malgorzata A., Łabuda, Marta, Hubin-Franskin, Marie-Jeanne, Delwiche, Jacques, Hoffmann, Søren Vrønning, Jones, Nykola C., Mason, Nigel J., Limão-Vieira, Paulo
Format: Article
Language:English
Subjects:
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Electron states
Fine structure
High resolution
Mathematical analysis
Molecular
Optical and Plasma Physics
Oscillator strengths
Photoabsorption
Photoelectrons
Photolysis
Physical Chemistry
Physics
Physics and Astronomy
Quantum Information Technology
Quantum Physics
Regular Article
Spectroscopy/Spectrometry
Spectrum analysis
Spintronics
Topical Issue: Dynamics of Systems at the Nanoscale
Ultraviolet spectra
Upper atmosphere
Vertical oscillations
X-rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The high-resolution vacuum ultraviolet photoabsorption spectrum of isobutyl acetate, C 6 H 12 O 2 , is presented here and was measured over the energy range 4.3–10.8 eV (290–115 nm). Valence and Rydberg transitions with their associated vibronic series have been observed in the photoabsorption spectrum and are assigned in accordance with new ab initio calculations of the vertical excitation energies and oscillator strengths. The measured photoabsorption cross sections have been used to calculate the photolysis lifetime of this ester in the Earth’s upper atmosphere (20–50 km). Calculations have also been carried out to determine the ionization energies and fine structure of the lowest ionic state of isobutyl acetate and are compared with a photoelectron spectrum (from 9.5 to 16.7 eV), recorded for the first time. Vibrational structure is observed in the first photoelectron band of this molecule. Graphical abstract
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2017-80071-4