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An electronic signature of hydrolysation in the X-ray absorption spectrum of aqueous formaldehyde

  • Niklas Ottosson
  • Emad F. Aziz
  • Ioana L. Bradeanu
  • Sebastien Legendre
  • Gunnar Öhrwall
  • Svante Svensson
  • Olle Bjoerneholm
  • Wolfgang Eberhardt
Publiceringsår: 2008
Språk: Engelska
Sidor: 540-542
Publikation/Tidskrift/Serie: Chemical Physics Letters
Volym: 460
Nummer: 4-6
Dokumenttyp: Artikel
Förlag: Elsevier Science B.V.


Formaldehyde in aqueous solution is hydrolysed and forms methanediol. Using X-ray absorption spectroscopy we show that the hydrolysation product can be identified by a distinct electronic signature in the spectra. This is manifested by the disappearance of the oxygen 1s -> pi* absorption line. The X-ray absorption spectrum of aqueous formaldehyde is compared with those of the structurally similar formamide and urea, which are in contrast not hydrolysed in aqueous solution. We thereby demonstrate the exceptional sensitivity and simplicity of the technique to monitor this fundamental process in the aqueous phase. (c) 2008 Elsevier B.V. All rights reserved.



  • Physics and Astronomy


  • ISSN: 0009-2614

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