NEXAFS study on the orientation of chiral P-heptahelicene on Ni(100)

被引：43

作者：

Ernst, KH

Neuber, M

Grunze, M

Ellerbeck, U

机构：

[1] Swiss Fed Labs Mat Testing & Res, EMPA, Surface Technol, CH-8600 Dubendorf, Switzerland

[2] Univ Heidelberg, D-69120 Heidelberg, Germany

[3] Free Univ Berlin, Inst Organ Chem, D-14195 Berlin, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2001年 / 123卷 / 03期

关键词：

D O I：

10.1021/ja003262+

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Near-edge X-ray absorption spectroscopy with linearly polarized synchrotron radiation has been applied to study the orientation of the helically shaped polyaromatic hydrocarbon P-heptahelicene (C30H12) on a Ni(100) surface under ultrahigh vacuum (UHV) conditions. By measuring the polarization dependence of the Cls --> pi* transitions the local adsorption geometry was determined. Between the helical axis of the molecule and the surface plane an angle of 43 +/- 5 degrees was observed for a saturated monolayer.

引用

页码：493 / 495

页数：3

共 32 条

[1] STRUCTURE AND ELECTRONIC FACTORS IN BENZENE COORDINATION TO CR(CO)3 AND TO CLUSTER-MODELS OF NI, PT, AND AG(111) SURFACES [J].