Cl对气态亚硝酸(HONO)直接提氢反应机理的研究

wf(2016)

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Abstract
采用密度泛函理论研究了Cl对气态亚硝酸(HONO)直接提取氢的反应机理.在B3LYP/6-311G ( d,p)水平上,优化得到了反应途径上的反应物、中间体、过渡态和产物的几何构型;通过频率分析对各分子构型进行了确认;并利用QCISD( T)方法计算了各分子单点能量.计算结果表明,HONO分子具有顺式和反式两种构型;常温条件下,Cl对顺式构型直接提取氢的反应竞争性具有明显优势,其主要反应途径为:cis-HONO+Cl→cis-M1→cis-TS→cis-M2→HCl+NO2.
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Key words
Nitrous acid ( HONO),Cl,Density functional theory ( DFT),Hydrogen abstraction reaction,Re-action mechanism
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