NCO与HCNO反应的动力学

Kinetics of the NCO + HCNO reaction.

作者信息

Feng Wenhui, Hershberger John F

机构信息

Department of Chemistry and Molecular Biology, North Dakota State University, Fargo, North Dakota 58105, USA.

出版信息

J Phys Chem A. 2007 May 17;111(19):3831-5. doi: 10.1021/jp066036g.

DOI:10.1021/jp066036g

PMID:17489550

Abstract

The kinetics of the NCO + HCNO reaction were studied using infrared diode laser absorption spectroscopy. The total rate constant was measured to be k(1) = (1.58 +/- 0.20) x 10(-11) cm(3) molecule(-1) s(-1) at 298 K. After detection of products and consideration of secondary chemistry (primarily O + HCNO and CN + HCNO), we conclude that NO + CO + HCN is the major product channel (phi = 0.92 +/- 0.04), with a minor contribution (phi = 0.04 +/- 0.02) from CO2 + HCNN.

摘要

利用红外二极管激光吸收光谱法研究了NCO + HCNO反应的动力学。在298 K下测得总速率常数为k(1) = (1.58 ± 0.20)×10⁻¹¹ cm³·分子⁻¹·s⁻¹。在检测到产物并考虑二级化学过程（主要是O + HCNO和CN + HCNO）后，我们得出结论，NO + CO + HCN是主要的产物通道（φ = 0.92 ± 0.04），而CO₂ + HCNN的贡献较小（φ = 0.04 ± 0.02）。