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Bromine Abstraction Versus Dehydrogenation in the Reaction of Gaseous Niobium Clusters with Saturated and Unsaturated Organic Bromides

机译：气态铌团簇与饱和和不饱和有机溴化物反应中的溴萃取与脱氢反应

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Small gaseous niobium clusters (Nb(x), x=1-12) synthesized by the laser evaporation technique are reacted with 1-bromopropene, 3-bromopropene, bromoethane, and 2-bromopropane in a fast flow reactor. While Bromine abstraction on all Niobium clusters takes place with both saturated and unsaturated bromides, addition-dehydrogenation occurs only with the unsaturated compounds at similar concentrations. The abstraction reaction probability is independent of x, but the dehydrogenation reaction has a threshold (at x=6) beyond which the reaction probability is greatly enhanced, and increases with cluster size from x=6 to 10. Thus the two reactions (bromide abstraction and addition-dehydrogenation) are not competitive, and may result from different types of collisions, impulsive and sticky collisions, respectively. Reprints. (aw)

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作者
Song, L.; El-Sayed, M. A.;
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年度 1989
页码 p.1-11
总页数 11
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Dehydrogenation; Niobium; Extraction; Organic compounds; Bromides; Bromine; Clustering; Evaporation; Fast reactors; Flow; Gases; Lasers; Probability; Reprints; Response; Saturation; Sizes(Dimensions); Propenes; Propane; Ethanes;

机译：脱氢;铌;萃取;有机化合物;溴化物;溴;聚集;蒸发;快反应器;流动;气体;激光;概率;重印;响应;饱和度;尺寸（尺寸）;丙烯;丙烷;乙烷;

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1. Reaction of niobium and tantalum neutral clusters with low pressure,unsaturated hydrocarbons in a pickup cell: From dehydrogenation to Met-Car formation [J] . S.-G.He, Y.Xie, F.Dong The Journal of Chemical Physics . 2006,第16期

机译：拾取电池中铌和钽的中性团簇与低压，不饱和烃的反应：从脱氢到形成Met-Car
2. Reaction of niobium and tantalum neutral clusters with low pressure,unsaturated hydrocarbons in a pickup cell: From dehydrogenation to Met-Car formation [J] . S.-G.He, Y.Xie, F.Dong The Journal of Chemical Physics . 2006,第16期

机译：拾取电池中铌和钽的中性团簇与低压，不饱和烃的反应：从脱氢到形成Met-Car
3. Reaction of niobium and tantalum neutral clusters with low pressure, unsaturated hydrocarbons in a pickup cell: From dehydrogenation to Met-Car formation [J] . He SG, Xie Y, Dong F, The Journal of Chemical Physics . 2006,第16期

机译：拾取电池中铌和钽的中性簇与低压不饱和烃的反应：从脱氢到形成Met-Car
4. APPLICATION OF “THERMAL CONDUCTIVE HEATING/IN-SITU THERMAL DESORPTION (ISTD)” TO THE REMEDIATION OF CHLORINATED VOLATILE ORGANIC COMPOUNDS IN SATURATED AND UNSATURATED SETTINGS [C] . John LaChance, Ralph S. Baker, James P. Galligan, Proceedings of the natural gas technologies II: ingenuity innovation . 2004

机译：“热传导加热/原位热解吸（标称）”在饱和和不饱和环境中氯化挥发性有机化合物的修复中的应用
5. ION MOLECULE REACTIONS OF BROMINE AND KRYPTON-BROMIDE IONS WITH METHANE AND ETHANE. [D] . WATKINS, HIAWATHA PIERRE. 1980

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6. Bromination of bis(pyridin-2-yl) diselenide in methylene chloride: the reaction mechanism and crystal structures of 1H-pyridine-2-selenenyl dibromide and its cycloadduct with cyclopentene (3aSR9aRS)-233a9a-tetrahydro-1H-cyclopenta4513selenazolo32-apyridinium bromide [O] . Zhanna V. Matsulevich, Julia M. Lukiyanova, Vladimir I. Naumov, 2019

机译：双（吡啶-2-基）二硒化物在二氯甲烷中的溴化：1H-吡啶-2-硒基二溴化物及其环加合物与环戊烯（3aSR9aRS）-233a9a-四氢的反应机理和晶体结构-1H-环戊45 13硒唑32-a溴化吡啶鎓
7. Bromination of Aliphatic Ketones with Copper(II) Bromide in Organic Solvents. I. The Reaction of Acetone with Copper(II) Bromide in Methanol [O] . Yoshitane Kojima, Shinichi Kawaguchi 1972

机译：用铜（II）溴化物在有机溶剂中的脂族酮溴化。 I.丙酮与铜（II）溴化物在甲醇中的反应
8. Reaction of Carbon Dioxide with Gaseous Niobium and Niobium Oxide Clusters. [R] . Song, L., Eychmuller, A., St Pierre, R. J., 1989

机译：二氧化碳与气态铌和氧化铌团簇的反应。

Bromine Abstraction Versus Dehydrogenation in the Reaction of Gaseous Niobium Clusters with Saturated and Unsaturated Organic Bromides

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