| 交叉分子束研究氯原子与硅烷的反应动力学 |
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| 引用本文： | 肖重发,沈关林,王秀岩,杨学明.交叉分子束研究氯原子与硅烷的反应动力学[J].化学物理学报,2011,24(1):4-7. |
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| 作者姓名： | 肖重发 沈关林 王秀岩 杨学明 |
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| 作者单位： | 中国科学院大连化学物理研究所分子反应动力学国家重点实验室，大连116023;中国科学院大连化学物理研究所分子反应动力学国家重点实验室，大连116023;中国科学院大连化学物理研究所分子反应动力学国家重点实验室，大连116023;中国科学院大连化学物理研究所分子反应动力学国家重点实验室，大连116023 |
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| 摘 要： | 利用通用型交叉分子束研究了氯原子与硅烷的反应，观测到SiH3Cl+H通道. 测量到产物SiH3Cl在实验坐标下的角度分辨的飞行时间谱，获得了这个通道质心坐标下的产物角分布和动能分布. 结果表明，相对于氯原子束方向，产物SiH3Cl主要是后向散射，说明这个通道主要是通过典型的双分子亲核取代反应(SN2)机理进行的.
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| 关 键 词： | 氯原子，硅烷，SN2机理，通用型交叉分子束 |
| 收稿时间： | 2010/5/26 0:00:00 |
Crossed Beams Study on the Dynamics of Cl Atom Reaction with Silane |
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| Chong-fa Xiao,Guan-lin Shen,Xiu-yan Wang and Xue-ming Yang.Crossed Beams Study on the Dynamics of Cl Atom Reaction with Silane[J].Chinese Journal of Chemical Physics,2011,24(1):4-7. |
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| Authors: | Chong-fa Xiao Guan-lin Shen Xiu-yan Wang and Xue-ming Yang |
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| Institution: | State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese
Academy of Sciences, Dalian 116023, China;State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese
Academy of Sciences, Dalian 116023, China;State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese
Academy of Sciences, Dalian 116023, China;State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese
Academy of Sciences, Dalian 116023, China |
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| Abstract: | The dynamics of the Cl+SiH4 reaction has been studied using the universal crossed molecular beam method. Angular resolved time-of-flight spectra have been measured for the channel
SiH3Cl+H. Product angular distributions as well as energy distributions in the center-of-
mass frame were determined for the channel. Experimental results show that the SiH3Cl
product is mainly backward scattered relative to the Cl atom beam direction, suggesting
that the channel takes place via a typical SN2 type reaction mechanism. |
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| Keywords: | Chlorine atom Silane SN2 mechanism Universal crossed molecular beam |
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