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Akihiro Watanabe, Katsuyoshi Yamasaki, Ikuo Tokue, "Collision Energy Dependence of the Overall Rate Constant for the Reaction NH( ) + HN3", Laser Chemistry, vol. 15, Article ID 020746, 12 pages, 1995. https://doi.org/10.1155/1995/20746
Collision Energy Dependence of the Overall Rate Constant for the Reaction NH( ) + HN3
The overall rate constant for the reaction NH( ) + HN3 has been determined by the laser photolysis of hydrogen azide (HN3) at 266 nm and 193nm. The visible emission from vibronically excited NH2(2A1) was dispersed and its time-dependent profiles were measured at several wavelengths. The rate constants are dependent not only on the photolysis wavelengths but also on the vibrational levels of the NH2(2A1) produced in the reaction. The intermolecular potential between NH() and HN3 was determined to be the form V(R) = –C/Rs (2 < s < 4, C: constant) from the analysis with a long-range potential approximation. The interaction between NH( ) and HN3 is mainly governed by the dipoledipole interaction in the initial stage of the reaction.
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