On the origin of the hydrogen-bond-network nature of water: X-ray absorption and emission spectra of water-acetonitrile mixtures

Kathrin M. Lange, René Könnecke, Mikhail A. Soldatov, Ronny Golnak, Jan Erik Rubensson, Alexander Soldatov, Emad F. Aziz

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Abstract

A liquid microjet was used to obtain oxygen K-edge X-ray absorption and emission spectra of water-acetonitrile mixtures of various compositions. The observed spectral changes are unambiguously related to the increasing number of broken hydrogen bonds with decreasing water concentration, and the hydrogen-bond network of liquid water can thus be addressed on purely experimental grounds without the need for theoretical modeling.

Original languageEnglish
Pages (from-to)10621-10625
Number of pages5
JournalAngewandte Chemie - International Edition
Volume50
Issue number45
DOIs
Publication statusPublished - 4 Nov 2011
Externally publishedYes

Keywords

  • hydrogen bonds
  • water
  • water chemistry
  • X-ray absorption spectroscopy
  • X-ray emission spectroscopy

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