Bulletin of the Korean Chemical Society

  • 제23권2호
  • /
  • Pages.184-188
  • /
  • 2002
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지
DOI QR코드

DOI QR Code

Depletion Kinetics of the Ground State CrO Generated from the Reaction of Unsaturated Cr(CO)x with O2 and N2O

  • Son, H.S. (Department of Chemistry, Center for Integrated Molecular Systems, Pohang University of Science and Technology) ;
  • Ku, J.K. (Department of Chemistry, Center for Integrated Molecular Systems, Pohang University of Science and Technology)
  • 발행 : 2002.02.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Unsaturated $Cr(CO)_x(1{\leq}x{\leq}5)$molecules were generated in the gas phase from photolysis of $Cr(CO)_6$vapor in He using an unfocussed weak UV laser pulse and their reactions with $O_2$ and $N_2O$ have been studied. The formation and disappearance of the ground state CrO molecules were identified by monitoring laser-induced fluorescence(LIF) intensities vs delay time between the photolysis and probe pulses. The photolysis laser power dependence as well as the delay time dependence of LIF intensities from the CrO orange system showed different behavior as those from ground state Cr atoms, suggesting that the ground state CrO molecules were generated from the reaction between $O_2/N_2O$ and photo-fragments of $Cr(CO)_6$ by one photon absorption. The depletion rate constants for the ground state CrO by $O_2$ and $N_2O$ are $5.4{\pm}0.2{\times}10^{-11}$ and $6.5{\pm}0.4{\times}10^{-12}cm^3molecule^{-1}s^{-1}$, respectively.

키워드

참고문헌

  1. Merer, A. J. Annu. Rev. Phys. Chem. 1989, 40, 407 https://doi.org/10.1146/annurev.pc.40.100189.002203
  2. Hocking, W. H.; Gerry, M. C. L.; Merer, A. J. Can. J. Phys. 1979, 57, 54 https://doi.org/10.1139/p79-006
  3. Chung, A. S.-C.; Hansen, R. C.; Merer, A. J. J. Mol. Spectrosc. 1982, 91, 165 https://doi.org/10.1016/0022-2852(82)90039-X
  4. Cheung, A. S.-C.; Lee, N.; Lyyra, A. M.; Merer, A. J.; Taylor, A. W. J. Mol. Spectrosc. 1982, 95, 213 https://doi.org/10.1016/0022-2852(82)90248-X
  5. Bauschlicher, C. W.; Maitre, P. Theor. Chim. Acta 1995, 90, 189 https://doi.org/10.1007/BF01113847
  6. Bakalbassis, E. G.; Stiakaki, M.-A. D.; Tsipis, A. C.; Tsipis, C. A. Chem. Phys. 1996, 205, 389 https://doi.org/10.1016/0301-0104(95)00417-3
  7. Davis, D. W. Astrophys. J. 1947, 106, 28
  8. Ninomiya, M. J. Phys. Soc. Jpn. 1955, 10, 829 https://doi.org/10.1143/JPSJ.10.829
  9. Hockings, W. H.; Merer, A. J.; Milton, D. J. Can. J. Phys. 1980, 58, 516 https://doi.org/10.1139/p80-073
  10. Cheung, A. S.-C.; yrnicki, W.; Merer, A. J. J. Mol. Spectrosc. 1984, 104, 316
  11. Barnes, M.; Hajigeorgiou, P. G.; Merer, A. J. J. Mol. Spectrosc. 1993, 160, 289 https://doi.org/10.1006/jmsp.1993.1176
  12. Devore, T. C.; Gole, J. L. Chem. Phys. 1989, 133, 95 https://doi.org/10.1016/0301-0104(89)80102-8
  13. Son, H. S.; Lee, K.; Shin, S. K.; Ku, J. K. Chem. Phys. Lett. 2000, 320, 658 https://doi.org/10.1016/S0009-2614(00)00294-3
  14. Son, H. S.; Lee, K.; Kim, S. B.; Ku, J. K. Bull. Korean Chem. Soc. 2000, 21, 583
  15. Tyndall, G. W.; Jackson, R. L. J. Chem. Phys. 1988, 89, 1364 https://doi.org/10.1063/1.455136
  16. Jackson, R. L. Acc. Chem. Res. 1992, 25, 581 https://doi.org/10.1021/ar00024a006
  17. Parnis, J. M.; Mitchell, S. A.; Hackett, P. A. J. Phys. Chem. 1990, 94, 8152 https://doi.org/10.1021/j100384a033
  18. Hedgecock, I. M.; Naulin, C.; Coates, M. Chem. Phys. 1996, 207, 379 https://doi.org/10.1016/0301-0104(95)00410-6
  19. Futerko, P. M.; Fontijn, A. J. Chem. Phys. 1992, 97, 3861
  20. Fontijn, A.; Blue, A. S.; Narayan, A. S.; Bajaj, P. N. Combust. Sci. Tech. 1994, 101, 59 https://doi.org/10.1080/00102209408951866
  21. Hedgecock, I. M.; Naulin, C.; Coates, M. J. Mol. Spectrosc. 1997, 184, 462 https://doi.org/10.1006/jmsp.1997.7328
  22. Demas, J. N. Excited State Lifetime Measurements; Academic: New York, 1983; pp 59-62

피인용 문헌

  1. Reaction of Cr Atoms with O2 at Low Pressures: Observation of New Chemiluminescence Bands from CrO2* vol.25, pp.2, 2002, https://doi.org/10.5012/bkcs.2004.25.2.226