Three-Body Association Reactions of NO+ with O2, N2, and CO2

Abstract

The association of NO⁺ with CO₂, NO⁺+CO₂+He→NO⁺·CO₂+He, is found to occur with a rate constant 1 × 10⁻²⁹ cm⁶ sec⁻¹ at 197°K, decreasing at higher temperatures. When N₂ or Ar are used as the third body the rate constant is about 3 times larger. The association of NO⁺ with O₂ and N₂ was found to be very much less efficient. It was found that NO⁺·CO₂ reacts rapidly with NO to produce NO⁺·NO, with H₂O to produce NO⁺·H₂O, and with NH₃ to produce NO⁺·NH₃. It was found that N₄⁺ charge transfers rapidly with O₂, and N₃⁺ reacts with O₂ to produce NO⁺, O₂⁺, and NO₂⁺.