Reactivity Control of C?H Bond Activation over Vanadium-Silver Bimetallic Oxide Cluster Cations
文献类型：期刊论文
| 作者 | Li, Xiao-Na1; Wu, Xiao-Nan1,2; Ding, Xun-Lei1; Xu, Bo1,2; He, Sheng-Gui1 |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 18期号:35页码:10998-11006 |
| 关键词 | c?c?C?c?h Activation Density Functional Calculations Mass Spectrometry Oxygen-centered Radicals Cluster Compounds |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.201201467 |
| 英文摘要 | Vanadiumsilver bimetallic oxide cluster ions (VxAgyOz+; x=14, y=14, z=311) are produced by laser ablation and reacted with ethane in a fast-flow reactor. A reflectron time of flight (Re-TOF) mass spectrometer is used to detect the cluster distribution before and after the reactions. Hydrogen atom abstraction (HAA) reactions are identified over VAgO3+, V2Ag2O6+, V2Ag4O7+, V3AgO8+, V3Ag3O9+, and V4Ag2O11+ ions, in which the oxygen-centered radicals terminally bonded on V atoms are active sites for the facile HAA reactions. DFT calculations are performed to study the structures, bonding, and reactivity. The reaction mechanisms of V2Ag2O6++C2H6 are also given. The doped Ag atoms with a valence state of +1 are highly dispersed at the periphery of the VxAgyOz+ cluster ions. The reactivity can be well-tuned gradually by controlling the number of Ag atoms. The steric protection due to the peripherally bonded Ag atoms greatly enhances the selectivity of the VAg bimetallic oxide clusters with respect to the corresponding pure vanadium oxide systems. |
| 语种 | 英语 |
| WOS记录号 | WOS:000307782800028 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49115]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | He, Sheng-Gui |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Inst Chem, Beijing 100864, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiao-Na,Wu, Xiao-Nan,Ding, Xun-Lei,et al. Reactivity Control of C?H Bond Activation over Vanadium-Silver Bimetallic Oxide Cluster Cations[J]. CHEMISTRY-A EUROPEAN JOURNAL,2012,18(35):10998-11006. |
| APA | Li, Xiao-Na,Wu, Xiao-Nan,Ding, Xun-Lei,Xu, Bo,&He, Sheng-Gui.(2012).Reactivity Control of C?H Bond Activation over Vanadium-Silver Bimetallic Oxide Cluster Cations.CHEMISTRY-A EUROPEAN JOURNAL,18(35),10998-11006. |
| MLA | Li, Xiao-Na,et al."Reactivity Control of C?H Bond Activation over Vanadium-Silver Bimetallic Oxide Cluster Cations".CHEMISTRY-A EUROPEAN JOURNAL 18.35(2012):10998-11006. |
入库方式： OAI收割
来源：化学研究所
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