Electronic state spectroscopy of acetaldehyde, CH₃CHO, by high-resolution VUV photo-absorption

Limão-Vieira, P.; Eden, S.; Mason, N. J. and Hoffmann, S. V. (2003). Electronic state spectroscopy of acetaldehyde, CH₃CHO, by high-resolution VUV photo-absorption. Chemical Physics Letters, 376(5-6) pp. 737–747.

DOI: https://doi.org/10.1016/S0009-2614(03)01070-4

Abstract

The high-resolution photo-absorption cross-section of CH₃CHO has been measured using synchrotron radiation in the range 3.0–11 eV (413 nm > λ > 113 nm). Electronic state assignments have been suggested for each of the observed absorption bands incorporating both valence and Rydberg transitions. Valence transitions to the singlet and triplet states are assigned. Six Rydberg series have been assigned converging to the ionisation energy limit 10.229 eV. Rydberg orbitals of each series are classified according to the magnitude of the quantum defect (σ). The measured VUV cross-sections are used to derive the photolysis rates of acetaldehyde in the terrestrial atmosphere.

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About

• Item ORO ID
• 25739
• Item Type
• Journal Item
• ISSN
• 0009-2614
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	Not Set	EPSRC (Engineering and Physical Sciences Research Council)
  Not Set	Not Set	NERC (Natural Environment Research Council)
  Not Set	Not Set	CLRC

• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Research Group
• Physics
• Copyright Holders
• © 2003 Elsevier Science B.V.
• Depositing User
• Sam Eden