Bonding and structure of 1,4-cyclohexadiene chemisorbed on Si(100)(2x1)

被引：38

作者：

Hamaguchi, K

Machida, S

Nagao, M

Yasui, F

Mukai, K

Yamashita, Y

Yoshinobu, J

Kato, HS

Okuyama, H

Kawai, M

Sato, T

Iwatsuki, M

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2001年 / 105卷 / 18期

关键词：

D O I：

10.1021/jp0029358

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：

The adsorption state of 1,4-cyclohexadiene on a Si(100)(2x1) surface is studied with synchrotron radiation photoelectron spectroscopy (PES), high-resolution electron energy loss spectroscopy (HREELS), and scanning tunneling microscopy (STM). The existence of one st bond in the chemisorbed 1,4-cyclohexadiene is confirmed by valence band PES and HREELS measurements. The bonds between the 1,4-cyclohexadiene molecule and Si surface are characterized by the observation of a Si-C stretching mode in HREEL spectra and the interface component due to the Si-C bond in high-resolution Si 2p spectra. The remaining outermost pi states in the adsorbed molecule are observed directly in the STM images. From HREELS and PES results, it is also clarified that the chemisorption state is basically invariable at any coverage.

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页码：3718 / 3723

页数：6

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