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Disentangling structural information from core-level excitation spectra

Disentangling structural information from core-level excitation spectra Core-level spectra of liquids can be difficult to interpret due to the presence of a range of local environments. We present computational methods for investigating core-level spectra based on the idea that both local structural parameters and the x-ray spectra behave as functions of the local atomic configuration around the absorbing site. We identify correlations between structural parameters and spectral intensities in defined regions of interest, using the oxygen K-edge excitation spectrum of liquid water as a test case. Our results show that this kind of analysis can find the main structure–spectral relationships of ice, liquid water, and supercritical water. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review E American Physical Society (APS)

Disentangling structural information from core-level excitation spectra

Disentangling structural information from core-level excitation spectra

Physical Review E , Volume 96 (1) – Jul 31, 2017

Abstract

Core-level spectra of liquids can be difficult to interpret due to the presence of a range of local environments. We present computational methods for investigating core-level spectra based on the idea that both local structural parameters and the x-ray spectra behave as functions of the local atomic configuration around the absorbing site. We identify correlations between structural parameters and spectral intensities in defined regions of interest, using the oxygen K-edge excitation spectrum of liquid water as a test case. Our results show that this kind of analysis can find the main structure–spectral relationships of ice, liquid water, and supercritical water.

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References (9)

Publisher
American Physical Society (APS)
Copyright
Copyright © ©2017 American Physical Society
ISSN
1539-3755
eISSN
550-2376
DOI
10.1103/PhysRevE.96.013319
pmid
29347119
Publisher site
See Article on Publisher Site

Abstract

Core-level spectra of liquids can be difficult to interpret due to the presence of a range of local environments. We present computational methods for investigating core-level spectra based on the idea that both local structural parameters and the x-ray spectra behave as functions of the local atomic configuration around the absorbing site. We identify correlations between structural parameters and spectral intensities in defined regions of interest, using the oxygen K-edge excitation spectrum of liquid water as a test case. Our results show that this kind of analysis can find the main structure–spectral relationships of ice, liquid water, and supercritical water.

Journal

Physical Review EAmerican Physical Society (APS)

Published: Jul 31, 2017

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