EVIDENCE FOR CATALYTIC FORMATION OF BENZENE FROM ETHYLENE ON TUNGSTEN IONS

被引：35

作者：

BERG, C

KAISER, S

SCHINDLER, T

KRONSEDER, C

NIEDNERSCHATTEBURG, G

BONDYBEY, VE

机构：

[1] Institut fur Physikalische und Theoretische Chemie, Technische Universität München, D-85747 Garching

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 231卷 / 2-3期

关键词：

D O I：

10.1016/0009-2614(94)01232-6

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 gas-phase reactivity of tungsten cations with ethylene was investigated by means of Fourier-transform ion cyclotron resonance mass spectrometry. The ethylene adsorbs on the W+ with partial dehydrogenation, forming W(C2H2)(n)(+) cluster ions. Up to nine ethylenes can be consecutively added, n=1-9. Collision-induced dissociation (CID) experiments provide evidence that a dehydrogenative oligomerization and formation of benzene takes place on the tungsten cation. The dominating fragmentation channel of the WC6H6+ ion results in appearance of the bare metal ion, suggesting that a C6H6 fragment, most likely benzene, was formed.

引用

页码：139 / 143

页数：5

共 27 条

[1] ETHYLENE COMPLEXES - BONDING, ROTATIONAL BARRIERS, AND CONFORMATIONAL PREFERENCES [J].