Formations of ON(X2.PI., A2.SIGMA.+) in the Reaction of NH(3.SIGMA.-) with NO in Incident Shock Waves.
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概要
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Gaseous mixtures of HNCO and NO diluted in Ar were heated by incident shock waves to about 3500 K to investigate the bimolecular reaction of NH(<SUP>3</SUP>Σ<SUP>−</SUP>) with NO. Ultraviolet emissions from the excited NH(A<SUP>3</SUP>II) and OH(A<SUP>2</SUP>Σ<SUP>+</SUP>) were monitored to determine the rate constants for the ground-state reaction NH(<SUP>3</SUP>Σ<SUP>−</SUP>)+NO→N<SUB>2</SUB>+OH(X<SUP>2</SUP>II). The branching ratio defined as the rate constant for the formation of OH relative to that for the NH(<SUP>3</SUP>Σ<SUP>−</SUP>) decay was found to be 0.32±0.07 at the shock-wave temperature adopted. An intense spike of chemiluminescence due to OH(A<SUP>2</SUP>Σ<SUP>+</SUP>→X<SUP>2</SUP>II) was observed, a finding which indicates a possible participation of the channel NH(<SUP>3</SUP>Σ<SUP>−</SUP>)+NO→N<SUB>2</SUB>+OH(A<SUP>2</SUP>Σ<SUP>+</SUP>) at high temperatures.
- 公益社団法人 日本化学会の論文
著者
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Yokoyama Keiichi
Department Of Biotechnology Graduate School Of Agricultre And Life Science The University Of Tokyo
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Fueno Takayuki
Department of Chemistry, Faculty of Engineering Science, Osaka University
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Sakane Yasuo
Department of Chemistry, Faculty of Engineering Science, Osaka University
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