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Citation: Gao Yi-De, Hu Chang-Jin, Jin Jin, Chen Yang, Chen Cong-Xiang. Kinetic Studies on Quenching of CCl₂(A ¹B ₁,a³B₁) by Alkanes[J]. Acta Physico-Chimica Sinica, ;2001, 17(06): 516-520. doi: 10.3866/PKU.WHXB20010609 shu

Kinetic Studies on Quenching of CCl₂(A ¹B ₁,a³B₁) by Alkanes

1.
Open Laboratory of Bond Selective Chemistry,Department of Chemical physics,Univ ersity of Science and Technology of China ,Hefei ,Anhui　230026

Received Date: 6 November 2000
Available Online: 15 June 2001

CCl2 free radicals were produced by dc discharge of CCl4(in Ar).Ground electronic state CCl2 radical was electronically excited to A 1B1 (0,4,0) state with Nd:YAG laser pumped dye laser at 541.52 nm.Experimental quenching data of CCl2 (A 1B1 and a 3B1) by alkanes were obtained by observing time resolved fluorescence from the excited CCl2 radicals transition,which showed a superposition of two exponential decay components.The stateresolved rate constants kA and ka were first time acquired by analyzing and treating these data by using threelevelmodel,which was put forward by us.kA and ka increase on the whole with increasing the number of C－H bonds in alkanes.
- CCl₂(A ¹B ₁,a³B₁);Alkanes;　Kinetics;Quenching rate constant;Three-level-model
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Kinetic Studies on Quenching of CCl2(A 1B 1,a3B1) by Alkanes

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通讯作者: 陈斌, bchen63@163.com

Kinetic Studies on Quenching of CCl₂(A ¹B ₁,a³B₁) by Alkanes