A theoretical study of dehydrogenation of cyclopentene on Pt(111)

被引:15
作者
Brizuela, G [1 ]
Castellani, N
机构
[1] Cornell Univ, Baker Lab, Dept Chem, Ithaca, NY 14853 USA
[2] UNS CONICET, RA-8000 Bahia Blanca, Buenos Aires, Argentina
[3] Univ Nacl Sur, Dept Fis, RA-8000 Bahia Blanca, Buenos Aires, Argentina
关键词
platinum; cyclopentene; dehydrogenation; ASED-MO;
D O I
10.1016/S1381-1169(98)00174-5
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 dehydrogenation of cyclopentene (c-C5H8) to cyclopentadienyl (c-C5H5) on Pt(111) is studied using a semiempirical molecular orbital method, Two possible mechanisms of reaction are considered, Results show that a sequential mechanism is favored over a simultaneous one, We also find a strong parallelism with previous theoretical results for c-C6H12 dehydrogenation to benzene, A bonding mechanism dominated by electron donation from pi orbitals of c-C5H5 into metal orbitals is found, Similar results have been reported for benzene adsorbed on Pt(111). (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:209 / 218
页数:10
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