title: Gas-phase reaction of CeV2O7+ with C2H4: activation of C-C and C-H bonds.
abstract: The reactivity of metal oxide clusters toward hydrocarbon molecules can be changed, tuned, or controlled by doping. Cerium-doped vanadium cluster cations CeV2O7(+) are generated by laser ablation, mass-selected by a quadrupole mass filter, and then reacted with C2H4 in a linear ion trap reactor. The reaction is characterized by a reflectron time-of-flight mass spectrometer. Three types of reaction channels are observed: 1) single oxygen-atom transfer , 2) double oxygen-atom transfer , and 3) C=C bond cleavage. This study provides the first bimetallic oxide cluster ion, CeV2O7(+), which gives rise to C=C bond cleavage of ethene. Neither Ce(x)O(y)(±) nor V(x)O(y)(±) alone possess the necessary topological and electronic properties to bring about such a reaction.
authors.affiliation: The Institute for Chemical Physics, Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, 100081, Beijing (P.R. China). majiabi@bit.edu.cn.
authors.forename: Jia-Bi
authors.initials: JB
authors.lastname: Ma
authors.forename: Zhen
authors.initials: Z
authors.lastname: Yuan
authors.forename: Jing-Heng
authors.initials: JH
authors.lastname: Meng
authors.forename: Qing-Yu
authors.initials: QY
authors.lastname: Liu
authors.forename: Sheng-Gui
authors.initials: SG
authors.lastname: He
keywords: cluster compounds; density functional calculations; gas-phase reactions; mass spectrometry; reaction mechanisms