Adsorption of Water Dimer on Platinum(111): Identification of the -OH center dot center dot center dot Pt Hydrogen Bond

作者：Motobayashi Kenta^*; Arnadottir Liney; Matsumoto Chikako; Stuve Eric M; Jonsson Hannes; Kim Yousoo; Kawai Maki

来源：ACS Nano, 2014, 8(11): 11583-11590.

DOI：10.1021/nn504824z

• scanning tunneling microscopy
• vibrational spectroscopy
• water
• DFT
• surface science
• hydrogen bond

The fundamental structure of an isolated water dimer on Pt(111) was determined by means of a spectroscopic method using scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. Two water molecules on adjacent atop sites form a dimer through a hydrogen bond, and they rotate even at a substrate temperature of 5 K. Action spectroscopy using STM (STM-AS) for water dimer hopping allows us to obtain the vibrational spectrum of a single water dimer on Pt(111). Comparisons between the experiments and theory show that one of the OH groups of the acceptor water molecule points toward the surface to form an -OH center dot center dot center dot Pt hydrogen bond.

• 出版日期2014-11
• 单位RIKEN