Shen Guanlin, Yang Xueming, Shu Jinian, Yang Chung-Hsin, Lee Yuan T
State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China.
J Chem Phys. 2006 Oct 7;125(13):133103. doi: 10.1063/1.2217438.
In this report, the dynamics of the F+SiH4 reaction has been studied using the universal crossed molecular beam method. Angular resolved time-of-flight spectra have been measured for all reaction products in a single set of experiments. Two different reaction channels have been observed: HF+SiH3 and SiH3F+H. Product angular distributions as well as energy distributions were determined for these two product channels. Experimental results show that the HF product is forward scattered relative to the F atom beam direction, while the SiH3F product is backward scattered relative the F atom beam direction, suggesting that two reaction channels proceed with distinctive reaction dynamics. The relative branching ratios of the two channels have also been estimated.
在本报告中，采用通用交叉分子束方法研究了F+SiH₄反应的动力学。在一组实验中测量了所有反应产物的角分辨飞行时间光谱。观察到了两个不同的反应通道：HF+SiH₃和SiH₃F+H。确定了这两个产物通道的产物角分布和能量分布。实验结果表明，HF产物相对于F原子束方向向前散射，而SiH₃F产物相对于F原子束方向向后散射，这表明两个反应通道具有独特的反应动力学。还估计了两个通道的相对分支比。
