Rate coefficients for removal of CN(X²Σ⁺ν=2) from selected rotational levels Ni=0 to 57 in collisions with N₂ and C₂H₂

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We report rate coefficients (k(tot,i)) for the total removal of CN(X(2)Sigma(+), v = 2, N-i) radicals from selected levels between N-i = 0 and 57 in collisions with N-2 and C2H2. Additionally, state-to-state rate coefficients (k(i-f)) have been measured for rotational energy transfer in collisions of CN(X(2)Sigma(+), v = 2, Ni = 0 and 1) with N-2 and C2H2. In the case of CN + C2H2, by comparing the values of k(tot,i) with the sum of the state-to-state rate coefficients (Sigma(f)k (i-->f)), we infer the rate constants for reaction (k(reac,i)) of CN(X(2)Sigma(+), v = 2, N-i = 0 and 1) with C2H2. (C) 2003 Elsevier Science B.V. All rights reserved.


Original languageEnglish
Pages (from-to)443-450
Number of pages8
JournalChemical Physics Letters
Issue number3-4
Publication statusPublished - 29 Apr 2003