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Citation: Huang Cun-Shun, Zhu Zhi-Qiang, Ran Qin, Chen Cong-Xiang, Chen Yang. Study on the Rate Constant of the Reaction of C₂H₃ Radical with Nitric Dioxide[J]. Acta Physico-Chimica Sinica, ;2003, 19(01): 51-54. doi: 10.3866/PKU.WHXB20030112 shu

Study on the Rate Constant of the Reaction of C₂H₃ Radical with Nitric Dioxide

1.
Key Laboratory of Bond Selective Chemistry, Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China, Hefei　230026

Received Date: 15 April 2002
Available Online: 15 January 2003

The product formation of the reaction of C2H3 radical with NO2 was studied in the gas phase under 2.66×103 Pa total pressure and 298 K. C2H3 radical was generated by laser photolysis of C2H3Br/Ar mixture. In the presence of nitric dioxide (NO2), the formation of OH radicals of the electronic ground states was monitored by laser-induced fluorescence. From the results of time resolved measurements of the OH radical concentrations, bimolecular rate constants for the reactions C2H3＋NO2 and OH(X 2Π)＋NO2 were determined as k(C2H3＋NO2)=(1.8±0.05)×10－11 cm3•molec.－1•s－1 and k(OH＋NO2)=(2.1±0.15)×10－12 cm3•molec.－1•s－1.
- C₂H₃ radical;Laser-induced fluorescence;Rate constant of reaction
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Study on the Rate Constant of the Reaction of C2H3 Radical with Nitric Dioxide

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通讯作者: 陈斌, bchen63@163.com

Study on the Rate Constant of the Reaction of C₂H₃ Radical with Nitric Dioxide