Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
권호 표지
DOI QR코드

DOI QR Code

Studies of Radicals Generated in Supersonic Flash Pyrolysis by Laser Induced Fluorescence Spectroscopy

  • Published : 1999.12.20
Download PDF
⟨ Previous Next ⟩

Abstract

Laser-induced fluorescence (LIF) spectroscopy has been applied to study the supersonic jet of radicals of nitric oxide (NO) and atomic iodine produced in the flash pyrolysis of precursors n-butylnitrite (CH₃(CH₂)₃ONO) and allyl iodide (C₃$H_5$I), respectively. The systematic population analysis with spectral simulations demonstrates that the precursors are efficiently pyrolyzed and that radical beams show a substantial supersonic cooling. In addition, absence of local equilibrium was observed in the distributions of two electronic spin-orbit states ²Π$_{1/2}$ and ²Π$_{3/2}$ of NO products and can be rationalized in terms of the efficiency of collision-induced energy transfer rates.

Keywords

References

  1. Molecular Reaction Dynamics and Chemical Reactivity Levine, R. D.;Bernstein, R. B.
  2. Science v.236 Lee, Y. T.
  3. Rev. Sci. Instrum. v.69 Kohn, D. W.;Clauberg, H.;Chen, P.
  4. J. Phys. Chem. v.90 Chen, P.;Colson, S. D.;Chupka, W. A.;Berson, J. A.
  5. J. Phys. Chem. v.97 Minsek, D. W.; Chen, P.
  6. Rev. Sci. Instrum. v.66 Rohrs, H. W.;Wickham-Jones, C. T.;Ellison, G. B.;Berry, D.;Argrow, B. M.
  7. J. Chem. Phys. v.93 Irvine, A. M. L.;Smith, I. W. M.;Tuckett, R. P.
  8. J. Chem. Phys. v.78 Chou, M. S.; Dean, A. M.;Stern, D.
  9. J. Chem. Phys. v.99 Hunter, M.;Reid, S. A.;Reisler, H.
  10. Spectroscopic data v.1 Suchard, S. N.
  11. J. Chem. Phys. v.109 Stranges, D.;Stemmler, M.;Yang, X.;Chesko, J. D.;Suits, A. G.;Lee, Y. T.
  12. J. Chem. Phys. v.110 Deyerl, H. J.;Fischer, I.;Chen, P.
  13. J. Chem. Phys. v.107 Schultz, T.;Fischer, I.
  14. J. Chem. Phys. v.107 Deyerl, H. J.;Gilbert, T.;Fischer, I.;Chen, P.
  15. J. Mol. Struct. (Theochem.) v.365 Yamaguchi, M.
  16. J. Am. Chem. Soc. v.87 Longuet-Higgins, H. C.;Abrahamon, E. W.
  17. J. Chem. Phys. v.109 Schultz, T.;Fischer, I.
  18. Thermochemical Kinetics Benson, S. W.
  19. Rev. Sci. Instrum. v.49 Gentry, W. R.;Giese, C. F.
  20. J. Chem. Phys. v.79 Brewer, P.;Das, P.;Ondrey, G.;Bersohn, R.
  21. Photochemistry of Small Molecules Okabe, H.
  22. J. Chem. Phys. v.81 Zacharias, H.;Loy, M. M. T.;Roland, P. A.;Sudbo, A. S.
  23. Unimolecular Reaction Dynamics Baer, T.;Hase, W. L.
  24. Ann. Rev. Phys. Chem. v.31 Levy, D. H.
  25. Chem. Rev. v.91 Engelking, P. C.
  26. Int. J. Chem. Kinet. v.9 Batt, L.;Milne, R. T.;McCulloch, R. D.
  27. Int. J. Chem. Kinet. v.9 Batt, L.;Milne, R. T.
  28. Natl. Bur. Stand. 35 v.3 Atomic Energy Levels Moore, C. E.
  29. Kim, H. K.;Kwon, H. C.;Park, J. H.;Choi, J. H.
  30. J. Phys. Chem. v.96 Minsek, D. W.;Blush, J. A.;Chen, P.