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
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
收藏
页码:139 / 143
页数:5
相关论文
共 27 条
[1]   ETHYLENE COMPLEXES - BONDING, ROTATIONAL BARRIERS, AND CONFORMATIONAL PREFERENCES [J].
ALBRIGHT, TA ;
HOFFMANN, R ;
THIBEAULT, JC ;
THORN, DL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (14) :3801-3812
[2]   POLYENE-ML2 AND POLYENE-ML4 COMPLEXES - CONFORMATIONAL PREFERENCES AND BARRIERS OF ROTATION [J].
ALBRIGHT, TA ;
HOFFMANN, R ;
TSE, YC ;
DOTTAVIO, T .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (14) :3812-3821
[3]  
ALBRIGHT TA, 1979, J AM CHEM SOC, V101, P3821
[4]   REACTION-MECHANISMS AND THERMOCHEMISTRY OF V++C2H2P (P = 1-3) [J].
ARISTOV, N ;
ARMENTROUT, PB .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1986, 108 (08) :1806-1819
[5]  
ARMENTROUT PB, 1990, SELECTIVE HYDROCARBO, P467
[6]   LASER-INDUCED FLUORESCENCE OF METAL-CLUSTERS PRODUCED BY LASER VAPORIZATION - GAS-PHASE SPECTRUM OF PB-2 [J].
BONDYBEY, VE ;
ENGLISH, JH .
JOURNAL OF CHEMICAL PHYSICS, 1981, 74 (12) :6978-6979
[7]   GAS-PHASE REACTIONS OF NB+ AND TA+ WITH ALKANES AND ALKENES - C-H-BOND ACTIVATION AND LIGAND-COUPLING MECHANISMS [J].
BUCKNER, SW ;
MACMAHON, TJ ;
BYRD, GD ;
FREISER, BS .
INORGANIC CHEMISTRY, 1989, 28 (18) :3511-3518
[8]  
CHATT J, 1953, J CHEM SOC, P2339
[9]  
Dewar, 1952, ANNU REP PROG CHEM, V48, P112
[10]  
Dewar M. J. S., 1951, B SOC CHIM FR, V18, pC79