%0 Journal Article
%T Kinetics of C2 (a3Πu) radical reactions with NO, N2O, O2, H2 and NH3<br>Kinetics of C2(a3Πu) radical reactions with NO, N2O, O2, H2 and NH3
%A HUANG Cunshun
%A LI Zongxiao
%A ZHAO Dongfeng
%A XIN Yao
%A PEI Linsen
%A CHEN Congxiang
%A CHEN Yang
%A <br>
%J 科学通报(英文版)
%D 2004
%I 
%X Pulsed laser photolysis/laser-induced fluorescence (LP-LIF) is utilized to measure rate constants for C2(a3Πu) reactions with NO, N2O, O2, H2 and NH3. Multiphoton dissociation of C2Cl4 at 266 nm is employed for the generation of C2(a3Πu) radicals. The C2(a3Πu) concentration is monitored by the fluorescence of the (0, 0) band of the (d3Πg a3Πu) transition at 516.5 nm. C2(a3Πu) removal rate constants for the reactions are determined as kNO = (5.46 ± 0.10) × 10 11 cm3 molecule 1 s 1, . Based on the data analysis and theoretical calculation, we suggest that the C2(a3Πu) reactions with H2 and NH3 proceed via the hydrogen abstraction mechanism, barriers exist at the entrance channel of the reactions of C2(a3Πu) with H2 and NH3.
%K C2(a3Π
%K u) radical
%K laser-induced fluorescence
%K rate constant<br>C2（a^3Пu）
%K 自由基反应
%K 氮氧化物
%K 氧气
%K 氢气
%K 氨气
%K 动力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=A3A10EF5297AA5B7EE619663698D7C3C&yid=D0E58B75BFD8E51C&vid=2A3781E88AB1776F&iid=94C357A881DFC066&sid=BEE722AB5028E81F&eid=D98387EFB283C5E0&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=26