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

Authors
Ernst, KH Neuber, M Grunze, M Ellerbeck, U
Citation
Kh. Ernst et al., NEXAFS study on the orientation of chiral P-heptahelicene on Ni(100), J AM CHEM S, 123(3), 2001, pp. 493-495
Citations number
32
Categorie Soggetti
Chemistry & Analysis",Chemistry
Journal title
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN journal
00027863 → ACNP
Volume
123
Issue
3
Year of publication
2001
Pages
493 - 495
Database
ISI
SICI code
0002-7863(20010124)123:3<493:NSOTOO>2.0.ZU;2-A
Abstract
Near-edge X-ray absorption spectroscopy with linearly polarized synchrotron radiation has been applied to study the orientation of the helically shape d polyaromatic hydrocarbon P-heptahelicene (C30H12) on a Ni(100) surface un der ultrahigh vacuum (UHV) conditions. By measuring the polarization depend ence of the Cls --> pi* transitions the local adsorption geometry was deter mined. Between the helical axis of the molecule and the surface plane an an gle of 43 +/- 5 degrees was observed for a saturated monolayer.