HYDROGEN-BOND INTERACTION BETWEEN SELF-ASSEMBLED MONOLAYERS AND ADSORBED WATER-MOLECULES AND ITS IMPLICATIONS FOR CLUSTER FORMATION

被引：25

作者：

ENGQUIST, I

LESTELIUS, M

LIEDBERG, B

机构：

[1] Laboratory of Applied Physics, Linköping University

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 39期

关键词：

D O I：

10.1021/j100039a002

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：

Infrared spectroscopy is used to investigate the adsorption of D2O onto self-assembled monolayers of methyl 16-mercaptohexadecanoate on gold. The D2O molecules are shown to interact with the carbonyl oxygens of the monolayer, forming hydrogen bonds and causing a structural rearrangement of the CO2CH3 terminal group. The number of hydrogen bonds decreases as the amorphous-like, essentially flat (two-dimensional) ice overlayer that forms at 100 K changes into polycrystalline-like ice upon annealing at 140 K. This decrease is a consequence of the formation of three-dimensional ice clusters, which leaves a large fraction of the monolayer surface bare.

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页码：14198 / 14200

页数：3

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