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A unique vibrational signature of rotated water monolayers on Pt(111): Predicted and observed
被引:35
作者:
Feibelman, Peter J.
[1
]
Kimmel, Greg A.
[2
]
Smith, R. Scott
[2
]
Petrik, Nikolay G.
[2
]
Zubkov, Tykhon
[2
]
Kay, Bruce D.
[2
]
机构:
[1] Sandia Natl Labs, Albuquerque, NM 87185 USA
[2] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA
关键词:
INITIO MOLECULAR-DYNAMICS;
TOTAL-ENERGY CALCULATIONS;
AUGMENTED-WAVE METHOD;
BASIS-SET;
FILMS;
ADSORPTION;
METALS;
ICE;
SURFACES;
HYDROGEN;
D O I:
10.1063/1.3591966
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:
Six H-bonds in the periodic di-interstitial structure that accounts for scanning tunneling microscope images of "root 37" and "root 39" wetting layers on Pt(111) are some 0.2 angstrom shorter than H-bonds are in ice Ih. According to a broadly obeyed correlation, this density functional theory result implies a stringent test of the di-interstitial motif, namely the presence of an OH-stretch band red-shifted from that of ice Ih by more than 1000 cm(-1). Infrared absorption spectra satisfy the test, in showing a feature centered at about 1965 cm(-1), which grows in as deposited water orders. (C) 2011 American Institute of Physics. [doi:10.1063/1.3591966]
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