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

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

Abstract

The high-resolution vacuum ultraviolet photoabsorption spectrum of isobutyl acetate, C6H12O2, 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.

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Authors (8)

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
EUROPEAN PHYSICAL JOURNAL D no. 71, pages 129 - 129,
ISSN: 1434-6060
Language:
English
Publication year:
2017
Bibliographic description:
Śmiałek-Telega M., Łabuda M., Hubin-Franskin M., Delwiche J., Hoffmann S., Jones N., Mason N., Limão-Vieira P.: Isobutyl acetate: electronic state spectroscopy by high-resolution vacuum ultraviolet photoabsorption, He(I) photoelectron spectroscopy and ab initio calculations// EUROPEAN PHYSICAL JOURNAL D. -Vol. 71, (2017), s.129-129
DOI:
Digital Object Identifier (open in new tab) 10.1140/epjd/e2017-80071-4
Verified by:
Gdańsk University of Technology

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