Cycloaddition chemistry on silicon(001) surfaces:: The adsorption of azo-tert-butane

被引：31

作者：

Ellison, MD ^{[1
]}

Hovis, JS ^{[1
]}

Liu, HB ^{[1
]}

Hamers, RJ ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1998年 / 102卷 / 43期

关键词：

D O I：

10.1021/jp981940x

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 of azo-tert-butane on the Si(001) surface at 300 K has been investigated using X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, scanning tunneling microscopy (STM), and ab initio computational chemistry methods. Although some cleavage of C-H bonds that prevents the formation of a completely ordered layer occurs at room temperature, adsorption onto a 130 K surface occurs molecularly with no bond cleavage. All of the experimental evidence shows that adsorption occurs through the interaction of the N=N azo bond with a single Si=Si dimer bond, in a manner similar to a [2 + 2] cycloaddition reaction. These results show that the use of [2 + 2] cycloaddition reactions to link organic substituents to the Si(001) surface is not limited to alkenes but can be extended to link compounds which have other types of unsaturated bonds to the Si(001) surface.

引用

页码：8510 / 8518

页数：9

共 47 条

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