Orientation of 10,11-dihydrocinchonidine on Pt(111)

被引：85

作者：

Evans, T

Woodhead, AP

Gutiérrez-Sosa, A

Thornton, G ^{[1
]}

Hall, TJ

Davis, AA

Young, NA

Wells, PB

Oldman, RJ

Plashkevych, O

Vahtras, O

Ågren, H

Carravetta, V

机构：

[1] Univ Manchester, Surface Sci Res Ctr, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England

[3] Univ Hull, Dept Chem, Hull HU6 7RX, N Humberside, England

[4] ICI Chem & Polymers Ltd, Runcorn WA7 4QE, Cheshire, England

[5] Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden

[6] CNR, Ist Chim Quantist & Energet Mol, I-56100 Pisa, Italy

来源：

SURFACE SCIENCE | 1999年 / 436卷 / 1-3期

基金：

英国工程与自然科学研究理事会;

关键词：

catalysis; chiral selectivity; 10,11-dihydrocinchonidine; metals; Pt(111);

D O I：

10.1016/S0039-6028(99)00694-9

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：

N K-edge NEXAFS and corresponding STEX calculations have been used to examine the orientation of 10,11-dihydrocinchonidine on Pt(111) at 298 and 323 K. The results indicate that the quinoline ring system is approximately parallel to the substrate at 298 K but is tilted up from the surface by 60+/-10 degrees at 323 K. An additional feature appears in the NEXAFS at the higher temperature, which probably arises from dissociation to quinoline. These results are in line with those expected on the basis of mechanistic studies involving supported Pt catalysts. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：L691 / L696

页数：6