Meyer Justin P, Hershberger John F
Department of Chemistry and Molecular Biology, North Dakota State University, Fargo, North Dakota 58105, USA.
J Phys Chem B. 2005 May 5;109(17):8363-6. doi: 10.1021/jp040503h.
The product branching ratio of the HCCO + NO reaction was investigated using the laser photolysis/infrared absorption technique. Ethyl ethynyl ether (C(2)H(5)OCCH) was used as the HCCO radical precursor. Transient infrared detection of CO, CO(2), and HCNO products was used to determine the following branching ratios at 296 K: phi(CO+HCNO) = 0.78 +/- 0.04 and phi(CO(2)+HCN) = 0.22 +/- 0.04. These values are in good agreement with some recent ab initio calculations.
采用激光光解/红外吸收技术研究了HCCO + NO反应的产物分支比。乙炔基乙醚(C(2)H(5)OCCH)用作HCCO自由基前体。通过对CO、CO(2)和HCNO产物的瞬态红外检测,确定了296 K时的以下分支比:φ(CO+HCNO)=0.78±0.04,φ(CO(2)+HCN)=0.22±0.04。这些值与最近的一些从头算计算结果吻合良好。