X-ray emission from pure and dilute H2O and D2O in a liquid microjet: Hydrogen bonds and nuclear dynamics

被引：47

作者：

Lange, Kathrin M. ^{[1
]}

Soldatov, Mikhail ^{[1
,2
]}

Golnak, Ronny ^{[1
]}

Gotz, Malte ^{[1
]}

Engel, Nicholas ^{[1
]}

Koennecke, Rene ^{[1
]}

Rubensson, Jan-Erik ^{[3
]}

Aziz, Emad F. ^{[1
,4
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany

[2] So Fed Univ, Res Ctr Nanoscale Struct Matter, Rostov Na Donu 344090, Russia

[3] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden

[4] Free Univ Berlin, Dept Phys, D-14159 Berlin, Germany

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 15期

基金：

欧洲研究理事会;

关键词：

CORE-HOLE STATES; ABSORPTION SPECTROSCOPY; PHONON RELAXATION; WATER; SPECTRA; MOLECULE; NETWORK; SODIUM; DECAY;

D O I：

10.1103/PhysRevB.85.155104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Knowledge about the hydrogen bond network of water is essential for understanding its anomalies as well as its special role for biochemical systems. Different types of x-ray spectroscopy allow probing of the molecular orbitals of water, revealing the electronic structure which reflects the hydrogen bond conformations. In this work a recently developed high-resolution x-ray emission spectrometer was used in combination with the microjet technique for recording spectra of liquid H2O and D2O and their mixtures with acetonitrile. Variation of the nuclear dynamics via isotope substitution and variation of the hydrogen bond conformation via dissolution in acetonitrile was investigated. These two effects have two clearly distinguishable spectral fingerprints.

引用

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