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Citation: Ma Zhi-Liu, Huang Rui-Ping. Quantitative Measurements of Vibrational Relaxation Rates in Supersonic Jets of I₂ B(ν′=43) State[J]. Acta Physico-Chimica Sinica, ;1990, 6(01): 23-31. doi: 10.3866/PKU.WHXB19900105 shu

Quantitative Measurements of Vibrational Relaxation Rates in Supersonic Jets of I₂ B(ν′=43) State

1.
Dalian Institute of Chemical Physics Academia Sinica

Received Date: 6 June 1988
Available Online: 15 February 1990

A LIF technique that employs a varying view field has been developed to give quantitative measurement for the vibrational relaxation rates of I_2 B(v′=43) state in supersonic jets. The data for Ar, N_2 and CO are obtained for the first time. The results have shown that the measured vibrational relaxation rates in cold jets bear an inverse tempeature dependence. For He and H_2 carrier gases, the dominant relaxation process is the usual △v=-1 process. For Ar, N_2 and CO, however, the most probable relaxation pathway is no longer Δv=-1 process, which apparently violates the energy gap law. These observations are adequately explained by a metastable complex formation mechanism.
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Quantitative Measurements of Vibrational Relaxation Rates in Supersonic Jets of I2 B(ν′=43) State

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通讯作者: 陈斌, bchen63@163.com

Quantitative Measurements of Vibrational Relaxation Rates in Supersonic Jets of I₂ B(ν′=43) State