Surface migration dynamics of a planar organic molecule studied by pulsed molecular beam scattering

被引：14

作者：

Shimada, T ^{[1
]}

Hashimoto, R ^{[1
]}

Koide, J ^{[1
]}

Kamimuta, Y ^{[1
]}

Koma, A ^{[1
]}

机构：

[1] Univ Tokyo, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan

来源：

SURFACE SCIENCE | 2000年 / 470卷 / 1-2期

关键词：

molecule-solid scattering and diffraction -inelastic; diffusion and migration; surface diffusion; mica; silicon oxides; aromatics; amorphous surfaces;

D O I：

10.1016/S0039-6028(00)00894-3

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：

Pulsed molecular beam scattering technique was applied to analyze the dynamics of a large planar molecule migrating on various surfaces (Au(1 1 1), graphite(0001), mica (001), amorphous silicon oxide). It was found that molecules can stay on the surface for seconds without condensation. Activation energies have a magnitude comparable to those of a single ionic or covalent bonding, which reflects the additivity of the van der Waals interaction. Possible contribution of the diffusion to the surface residence time is discussed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：L52 / L56

页数：5

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