Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
2005 | 3 | 3 | 387-403
Tytuł artykułu

A study of background emissions enhancements in nitrogen afterglows, due to addition of discharged O2, in connection with the reactions {N2 (A3Σu+, υ) + O(3P)}, {O2 (a1Δg) + N(4S)} and {O2 (a1Δg) + N2 (A3Σu+)}

Treść / Zawartość
Warianty tytułu
Języki publikacji
Intensity enhancement due to the addition of discharged O2 is examined for background N2 (B Πg → A3Σu+) emissions in various flowing nitrogen afterglows. Possible implications are reported for the experimentally determined rate constants for the reactions {N2 (A3Σu+, υ) + O(3P)}, and {O2 (a1Δg) + N(4S)}, as a result of the present study. The present, as well as previously reported, N2 (B Πg → A3Σu+) emissions intensity enhancements suggest complementary conclusions. Previous differences in experimental results reported for the {O2 (a1Δg) + N(4S)} reaction [based on studies observing the decay of either O2 (a1Δg) molecules or N(4S) atoms alone] are reconciled by a unifying additional interpretation. This interpretation leads to a rate constant estimate for the energy transfer reaction, {O2 (a1Δg) + N(2(A3Σu+)}, deduced to account for the above N2 (B3Πg → A3Σu+) emissions intensity enhancements.

Opis fizyczny
  • Department of Chemistry, University of Ioannina, GR45110, Ioannina, Greece,
  • [1] S. De Benedictis and G. Dilecce: “Rate constants for deactivation of N2(A) v=2–7 by O, O2, and NO”, J. Chem. Phys., Vol. 107, (1997), pp. 6219–29 and references therein.[Crossref]
  • [2] J.M. Thomas and F. Kaufman: “Rate constants of the reactions of metastable N2 A3Σ u +) in v=0,1,2, and 3 with ground state O2 and O”, J. Chem. Phys., Vol. 83, (1985), pp. 2900–3.
  • [3] L.G. Piper: “The excitation of O(1S) in the reaction between N2 A3Σ u +) and O(3P)”, J. Chem. Phys., Vol. 77, (1982), pp. 2373–7.[Crossref]
  • [4] L.G. Piper, G.E. Caledonia and J.P. Kennealy: “Rate constants for deactivation of N2 (A3Σ u +, v’=0,1) by O”, J. Chem. Phys., Vol. 75, (1981), pp. 2847–52.
  • [5] J.A. Meyer, D.W. Setser and D.H. Stedman: “Energy transfer reactions of N2 (A3Σ u +). II. Quenching and emission by oxygen and nitrogen atoms”, J. Phys. Chem., Vol. 74, (1970), pp. 2238–40.[Crossref]
  • [6] A.R. De Souza et al.: “Note on the determination of the efficiency of the reaction N2 N2 (A3Σ u +) + O(3P) → N2+O(1S)”, J. Phys. B., At. Mol. Phys, Vol. 18, (1985), pp. L661–6.[Crossref]
  • [7] J.M. Thomas and F. Kaufman: “An upper limit on the formation of NO(X2Πr ) in the reactions N2 (A3Σ u +) + O(3P) and N2 (A3Σ u +) + O2(X3Σ g -) at 298K”, J. Phys. Chem., Vol. 100, (1996), pp. 8901–6.[Crossref]
  • [8] G. Dilecce and S. De Benedictis: “Experimental studies on elementary kinetics in N2−O2 pulsed discharges”, Plasma Sources Sci. Technol., Vol. 8, (1999), pp. 266–78 and references therein.[Crossref]
  • [9] J.T. Herron: “Evaluated chemical kinetics data for reactions of N(2D), N(2P) and N2 (A3Σ u +) in the gas phase”, J. Phys. Chem. Ref. Data, Vol. 28, (1999), pp. 1453–83 and references therein. [Crossref]
  • [10] E. Kamaratos: “Orange Flame from Active Nitrogen and Oxygen in the Absence of a Metal Catalyst Resulting from Collisional Intersystem Crossing into N2 (B3Πg)”, J. Phys. Chem. A, Vol. 101, (1997), pp. 2040–4 and references therein.[Crossref]
  • [11] E. Kamaratos: “Emissions from Active Nitrogen and Oxygen Mixtures”, In: J.J. Carroll and T.A. Goldman (Eds.): Proceedings of the international conference on LASERS '97, STS Press, McLean, VA, USA, 1998, pp. 529–32.
  • [12] E. Kamaratos: “Energy transfer in a nitrogen afterglow in the presence of activated oxygen”, Proceedings of SPIE, Vol. 5131, (2003), pp. 149–57.
  • [13] R.J. Oldman and H.P. Broida: “Effect of oxygen and hydrogen atoms on the vibrational distribution of N2 (B3Πg) in the nitrogen afterglow”, J. Chem. Phys., Vol. 51, (1969), pp. 2254–8.[Crossref]
  • [14] G.G. Mannella, R.R. Reeves and P. Harteck: “Surface catalyzed excitation with N and O atoms”, J. Chem. Phys., Vol. 33, (1960), pp. 636–7.[Crossref]
  • [15] E. Kamaratos: “, unpublished data along with results cited in ref. 10.[Crossref]
  • [16] I. Nadler, D.W. Setser and S. Rosenvacs: “Production of the N2 Herman infrared system by the energy pooling reaction of N2 (A3Σ u +) metastable nitrogen molecules”, Chem. Phys. Lett., Vol. 72, (1980), pp. 536–40.[Crossref]
  • [17] C. Schmidt and H.I. Schiff: “Reactions of O2(1Δg ) with atomic nitrogen and hydrogen”, Chem. Phys. Lett., Vol. 23, (1973), pp. 339–42.[Crossref]
  • [18] L.G. Piper: “The excitation of N2 (B3Πg v=1-12) in the reaction between N2 (A3Σ u +) and N2 (B, v>4)”, J. Chem. Phys, Vol. 91, (1989), pp. 864–73.[Crossref]
  • [19] J.S. Morrill and W.M. Benesch: “Auroral N2 emissions and the effect of collisional processes on N2 triplet state vibrational populations”, J. Geophys. Res., Vol. 101, (1996), pp. 261–74 and references therein.[Crossref]
  • [20] J.S. Morrill et al.: “Time resolved N2 triplet state vibrational populations and emissions associated with red sprites”, J. Atmos. Solar Terr. Phys., Vol. 60, (1998), pp. 811–29.[Crossref]
  • [21] I.D. Clark and R.P. Wayne: “Kinetics of the reaction between atomic nitrogen and molecular oxygen in the ground (3Σ g -) and first excited (1Δg) states”, Proc. Roy. Soc. Lond. A., Vol. 316, (1970), pp. 539–50.[Crossref]
  • [22] A.A. Westenberg, J.M. Roscoe and N. deHaas: “Rate measurements on N + O2(a1Δg ) and H + O2(a1Δg )”, Chem. Phys. Lett., Vol. 7, (1970), pp. 597–9.[Crossref]
  • [23] L.G. Piper: “State-to-state State-to-state N2 (A3Σ u +) energy-pooling reactions. I. The formation of N2 (C3Πu ) and the Herman infrared system”, J. Chem. Phys., Vol. 88, (1988), pp. 231–9 and references therein.[Crossref]
  • [24] M.E. Fraser and L.G. Piper: “Product Branching ratios from the N2 (A3Σ u +) + O2 interaction”, J. Phys. Chem., Vol. 93, (1989), pp. 1107–11.[Crossref]
  • [25] H. Umemoto, M. Oku and T. Iwai: “Collisional intersystem crossing of N2 (a1Σ u -) to produce triplet-state molecular nitrogen”, J. Chem. Phys., Vol. 118, (2003), pp. 10006–11.[Crossref]
  • [26] R.P. Wayne: “Reactions of singlet molecular oxygen in the gas phase”, In: A.A. Frimer (Ed.): Singlet O 2, Vol. 1, Chapter 4, CRC Press, Boca Raton, LA, USA, 1985, pp. 81–175 and refs. therein.
  • [27] W. Brennen and P. McIntyre: “Vibrational relaxation and electronic mutation of metastable nitrogen molecules generated by nitrogen atom recombination on cobalt and nickel”, Chem. Phys. Lett., Vol. 90, (1982), pp. 457–60.[Crossref]
  • [28] O.J. Dunn and R.A. Young: “Quenching of N2 (A3Σ u +) by O2, O, N and H”, J. Chem. Kinet., Vol. 8, (1976), pp. 161–72.[Crossref]
Typ dokumentu
Identyfikator YADDA
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.