Unique water-water coordination tailored by a metal surface

被引：2
|
作者：
Schiros, T. [1 ,2 ]
Andersson, K. J. [3 ]
MacNaughton, J. [1 ]
Gladh, J. [2 ]
Matsuda, A. [2 ,4 ]
Ostrom, H. [2 ]
Takahashi, O. [5 ]
Pettersson, L. G. M. [2 ]
Nilsson, A. [1 ,2 ]
Ogasawara, H. [1 ]
机构：
[1] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA
[2] Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, S-10691 Stockholm, Sweden
[3] Tech Univ Denmark, CINF, Dept Phys, DK-2800 Lyngby, Denmark
[4] Nagoya Univ, Res Ctr Mat Sci, Nagoya, Aichi 4648602, Japan
[5] Hiroshima Univ, Dept Chem, Higashihiroshima 7398526, Japan
来源：
JOURNAL OF CHEMICAL PHYSICS | 2013年 / 138卷 / 23期
关键词：
RAY-ABSORPTION SPECTRA; GAS SHIFT REACTION; DISSOCIATIVE ADSORPTION; FINE-STRUCTURE; LIQUID WATER; CU(110); ICE; MOLECULES; SPECTROSCOPY; VIBRATIONS;
D O I：
10.1063/1.4809680
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
At low coverage of water on Cu(110), substrate-mediated electrostatics lead to zigzagging chains along [001] as observed with STM [T. Yamada, S. Tamamori, H. Okuyama, and T. Aruga, "Anisotropic water chain growth on Cu(110) observed with scanning tunneling microscopy" Phys. Rev. Lett. 96, 036105 (2006)]. Using x-ray absorption spectroscopy we find an anomalous low-energy resonance at similar to 533.1 eV which, based on density functional theory spectrum simulations, we assign to an unexpected configuration of water units whose uncoordinated O-H bonds directly face those of their neighbors; this interaction repeats over trough sites with enhanced electron density and is analogous to the case of a hydrated electron. (C) 2013 AIP Publishing LLC.
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页数：7
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