X-ray absorption spectroscopy measurements of liquid water

Naslund L., Luning J., Ufuktepe Y., Ogasawara H., Wernet P., Bergmann U., ...Daha Fazla

JOURNAL OF PHYSICAL CHEMISTRY B, cilt.109, sa.28, ss.13835-13839, 2005 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 109 Sayı: 28
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1021/jp052046q
  • Dergi Adı: JOURNAL OF PHYSICAL CHEMISTRY B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.13835-13839
  • Çukurova Üniversitesi Adresli: Evet

Özet

Recent studies, based on X-ray absorption spectroscopy (XAS) and X-ray Raman scattering (XRS), have shown that the hydrogen bond network in liquid water consists mainly of water molecules with only two strong hydrogen bonds. Since this result is controversial, it is important to demonstrate the reliability of the experimental data, which is the purpose of this paper. Here we compare X-ray absorption spectra of liquid water recorded with five very different techniques sensitive to the local environment of the absorbing molecule. Overall, the spectra obtained with photon detection show a very close similarity and even the observable minor differences can be understood. The comparison demonstrates that XAS and XRS can indeed be applied reliably to study the local bonding of the water molecule and thus to reveal the hydrogen bond situation in bulk water.