The local structure of small water clusters: imprints on the core-level photoelectron spectrum

被引：20

作者：

Abu-samha, M. ^{[1
]}

Borve, K. J. ^{[1
]}

Winkler, M. ^{[1
]}

Harnes, J. ^{[1
]}

Saethre, L. J. ^{[1
]}

Lindblad, A. ^{[2
]}

Bergersen, H. ^{[2
]}

Ohrwall, G. ^{[2
]}

Bjorneholm, O. ^{[2
]}

Svensson, S. ^{[2
]}

机构：

[1] Univ Bergen, Dept Chem, NO-5007 Bergen, Norway

[2] Uppsala Univ, Dept Phys, S-75121 Uppsala, Sweden

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2009年 / 42卷 / 06期

基金：

瑞典研究理事会;

关键词：

INFRARED-SPECTRA; SPECTROSCOPY; VIBRATIONS; METHANOL; LIQUID; SIZE; ICE;

D O I：

10.1088/0953-4075/42/5/055201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on an O 1s photoelectron-spectroscopy study of small neutral water clusters produced by adiabatic expansion. The photoelectron spectra were acquired under two different experimental conditions. At intermediate resolution, the cluster signal was characterized by a very broad O 1s peak with a flat top. In the second set of measurements, resolution was significantly increased at the cost of lower count rates. The cluster signal was now partly resolved into a bimodal structure. Extensive theoretical calculations were undertaken to facilitate an interpretation of the spectrum. These results suggest that the bimodal feature may be ascribed to ionization of water molecules in different hydrogen-bonding configurations, more specifically, molecules characterized by donation of either one or both hydrogen atoms in H-bonding.

引用

页数：5

共 26 条

[1] What can c1s photoelectron Spectroscopy tell about structure and bonding in clusters of methanol and methyl chloride? [J].