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Study of Local structures of liquid water by X-Ray Emission Spectroscopy (XES) (CAT#: STEM-ST-0287-WXH)

Introduction

The simplicity of the water molecule with its electronpoor nondegenerate electronic structure has made it an obvious test bed and demonstration case for spectroscopy as well as for theoretical modeling, something that in a certain sense contrasts the complexity of liquid water and the rather conspicuous difficulties of determining even the most basic properties of the solvated water molecule.

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Principle Applications Materials

Principle

XES is an element-specific method primarily used to analyze the partially occupied electronic structure of materials. The technique is one of the photon-in-photon-out spectroscopies in which an incident X-ray photon is used to excite a core electron, which leads to the transition of the electron from the ground state to the excited state, and then the excited state of the electron decays with the emission of an X-ray photon in order to fill the core hole.

Applications

Used for the study of electronic structure and for the qualitative and quantitative analysis of substances.

Materials

• X-ray emission spectrometer
• X-ray generating equipment (X-ray tube)
• Collimators
• Monochromators
• X-ray detectors
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