THE ADSORPTION OF BUTENE-1, ISOBUTENE, CIS-2-BUTENE AND TRANS-2-BUTENE ON PT(111) AT 95-K - NEXAFS AND UPS RESULTS

被引：14

作者：

CASSUTO, A ^{[1
]}

TOURILLON, G ^{[1
]}

机构：

[1] LURE, F-91405 ORSAY, FRANCE

来源：

SURFACE SCIENCE | 1994年 / 307卷

关键词：

D O I：

10.1016/0039-6028(94)90371-9

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：

The adsorption of the various butene isomers has been monitored on Pt(111) at 95 K using UPS. The multilayer spectra are in good agreement with the gas phase spectra and differ strongly from one isomer to another. At one monolaYer, a first indication of various strongly adsorbed species result from the positions of the molecular orbitals. NEXAFS also indicates strong chemisorption and the sigma(C=C)* resonance has disappeared. All monolayers are oriented with their C-C axis parallel to the surface. The positions of the sigma(C-C)* resonances corresponding to the single bonds follow the same trend in the monolayers, the condensed multilayers and the gas phase showing that the di-sigma-bonded, adsorbed butene isomers differ.

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页码：65 / 69

页数：5

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