Rate constants and product distributions have been measured for a number of simple molecules reacting with ONOO(-) at 200 and 300K. NO, CO, H2, CH4, N2O, and H2O did not react with ONOO(-). HCl and HCN underwent proton transfer in addition to other competing channels. Charge transfer from ONOO(-) was observed exclusively with O3 and NO2. SO2 and HCl underwent exchange for NO in ONOO(-). HCN was the only substance ...
Cross sections and branching ratios are presented for the dissociative recombination of the CF2+ and CF3+ ions with electrons. It is found that the channel producing CF + F is dominant for the reaction with CF2+ and the production of CF2 + F is dominant for the reaction with CF3+. The cross sections for these two ions are very similar.
The overall rate constant of the dissociative recombination of CO(2)+ was first measured in 1967. Since then, the room-temperature rate was measured several times and the values obtained varied in the narrow range of (3.1-4.0) x 10(exp -7) cu cm s(exp -1). Recently, the rate was measured at the Aarhus storage ring in Denmark (ASTRID) and found to be larger, 6.5 x 10(exp -7) cu cm s(exp -1) at 300 ...
The dissociative recombination of C(3)D(7)+ was measured in the ion storage ring CRYRING. The higher mass separation offered from the deuterated species provided more accurate branching ratios than the data obtained previously for C(3)H(7)+. We obtained rate constants of 2.3 + or - 0.4 x 10(exp -7) cu cm s(exp -1) for C(3)D(7)+ and 5.8 + or - 1.1 x 10(exp -7) for C(4)D(9)-.
We report the first observation of four-body breakup in electron dissociative recombination of a molecular ion: C2D5+. In an ion storage ring experiment, the branching ratio for the process C2D5(+) + e -> C2D2 + D + D + D was determined to be 13%. This means that three covalent chemical bonds are broken as a result of the action of a single electron. This is the first time a ...
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