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Experimental and Theoretical Studies of the Reactions Y(a~2D)+H2CO and Y(a~2D)+CH3CHO

机译:Y(a〜2D)+ H2CO和Y(a〜2D)+ CH3CHO反应的实验和理论研究

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摘要

The reactions of ground state Y(a~2D)with H2CO and CH3CHO were studied at a range of collision energies in crossed molecular beams.For reaction with H2CO,three product channels were observed:formation of YH2+CO,YCO+H2,and YHCO+H.Reaction with CH3CHO led to three analogous product channels involving formation of HYCH3+CO,YCH2CO+H2,and YCH3CO+H.The calculated CCSD(T)energetics and DFT geometries for key intermediates in both reactions,together with RRKM theory,are used to calculate a priori the branching ratios between various product channels.These calculated values are compared to those obtained experimentally.
机译:研究了在交叉分子束中一定范围的碰撞能量下,基态Y(a〜2D)与H2CO和CH3CHO的反应。对于与H2CO的反应,观察到三个产物通道:YH2 + CO,YCO + H2的形成和YHCO + H。与CH3CHO的反应导致了三个类似的产物通道,涉及HYCH3 + CO,YCH2CO + H2和YCH3CO + H的形成。两个反应的关键中间体的CCSD(T)能量学和DFT几何计算以及RRKM理论用来先验地计算出各种产品通道之间的支化比。这些计算值与通过实验获得的值进行比较。

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