期刊
JOURNAL OF CHEMICAL PHYSICS
卷 135, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3607246
关键词
-
资金
- Engineering and Physical Sciences Research Council (UK)
- Science Research Investment Fund
The local adsorption site of the nucleobase uracil on Cu(110) has been determined quantitatively by energy-scanned photoelectron diffraction (PhD). Qualitative inspection of the O 1s and N 1s soft x-ray photoelectron spectra, PhD modulation spectra, and O K-edge near-edge x-ray adsorption fine structure indicate that uracil bonds to the surface through its nitrogen and oxygen constituent atoms, each in near atop sites, with the molecular plane essentially perpendicular to surface and aligned along the close packed [1 (1) over bar0] azimuth. Multiple scattering simulations of the PhD spectra confirm and refine this geometry. The Cu-N bondlength is 1.96 +/- 0.04 angstrom, while the Cu-O bondlengths of the two inequivalent O atoms are 1.93 +/- 0.04 angstrom and 1.96 +/- 0.04 angstrom, respectively. The molecule is twisted out of the [1 (1) over bar0] direction by 11 +/- 5 degrees (C) 2011 American Institute of Physics. [doi:10.1063/1.3607246]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据