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Journal Article

Local structure of amorphous ice as revealed by O K-edge EXAFS


Grunze,  Michael
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Zubavichus, Y., Yang, Y., Zharnikov, M., Fuchs, O., Schmidt, T., Heske, C., et al. (2004). Local structure of amorphous ice as revealed by O K-edge EXAFS. ChemPhysChem, 5(4), 509-514. doi:10.1002/cphc.200300842.

Cite as: https://hdl.handle.net/21.11116/0000-0001-D65E-5
The oxygen K-edge extended X-ray absorption fine structure (EXAFS) spectrum of an ice film prepared by deposition of water vapor on a substrate at 100 K was measured in the surface-sensitive Auger yield mode. Five distinct peaks are revealed in the Fourier transform spectrum of the EXAFS data. The peaks are attributed to O-H bonds (with overlapping contributions from intramolecular covalent and intermolecular hydrogen bonds) as well as to intermolecular O...O scattering paths in the distance range of 1-7 A. The pattern of the longer O...O distances resembles that of a high-pressure crystalline modification of ice (ice II).