The vibrational deactivation of N-2(v = 1) by H-2 and HD at low temperatures

JP Reid*, PW Barnes, CJSM Simpson

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

Abstract

Rate constants have been measured for the vibration-to-translation deactivation of N-14(2)(upsilon = 1) and N-15(2)(upsilon = 1) by H-2 and HD between 55-200 K. It is concluded that near-resonant (VR) coupling does not occur with H-2, but is significant for N-15(2) deactivated by HD above 100 K. Below 70 K, the rate constants for the deactivation of N-2(upsilon = 1) continue to fall with temperature, in contrast to those for the deactivation of CO(upsilon = 1) by the same collision partners. Since the well-depths for the two cases are similar, the anisotropy of the attractive well must be important in governing low temperature rate constants. (C) 1997 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)359-366
Number of pages8
JournalChemical Physics Letters
Volume280
Issue number3-4
Publication statusPublished - 5 Dec 1997

Keywords

  • GAS-PHASE
  • ENERGY-TRANSFER
  • (CO)-C-12-O-16
  • N-15(2)
  • HE-4
  • 35-K
  • V=1

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