Control and characterization of a multistep unimolecular reaction

被引：92

作者：

Lauhon, LJ ^{[1
]}

Ho, W

机构：

[1] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA

[2] Cornell Univ, Cornell Ctr Mat Res, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.84.1527

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electrons from a scanning tunneling microscope were used to break a C-B bond in a single acetylene (HCCH) molecule adsorbed on Cu(001) at 9 K. The product ethynyl (CCH) was characterized by imaging, inelastic electron tunneling spectroscopy, and variable temperature measurements of the rotation rate. Significant changes in the vibrational spectra and bonding geometry accompanied HCCH dissociation. The ethynyl was further dehydrogenated to form dicarbon (CC). Dissociation studies of the isotopes HCCD and DCCD permitted unambiguous identification of the reaction products.

引用

页码：1527 / 1530

页数：4

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