Journal of Chemical Physics
Feedback | Help | Exit
The Journal of Chemical Physics
Search:
   
 
 
 
Previous Article
An electron diffraction study of alkali fluoride vapors
The structures of NaF, KF, RbF, and CsF in the vapor phase were determined via standard electron diffraction counting techniques with nozzle temperatures ranging from 798 to 1123 K. The reactivity of ...
Next Article
Spectroscopic characterization of the X(10+) and A(30+) states of CdNe, CdAr, CdKr, and CdXe
We report the spectroscopic characterization of the X(10+) and A(30+) states of CdNe, CdAr, CdKr, and CdXe. The van der Waals molecules were created in a free jet supersonic expansion and studied by l...

Resonance enhanced multiphoton ionization spectra of the GeF and GeCl radicals from 400 to 500 nm

J. Chem. Phys. 89, 6064 (1988); doi:10.1063/1.455421

Issue Date: 15 November 1988

You are not logged in to this journal. Log in

Russell D. Johnson III, Bilin P. Tsai, and Jeffrey W. Hudgens
Chemical Kinetics Division, Center for Chemical Physics, National Bureau of Standards, Gaithersburg, Maryland 20899
The resonance enhanced multiphoton ionization spectra from 400 to 500 nm of the GeF and GeCl radicals are reported. In GeF bands involving transitions to the A 2Sigma+, C[script '] 2Pi, D[script '] 2Pi, E 2Sigma+, and G 2Delta states were observed. The bands involving transitions to the valence A 2Sigma+ state were accounted for by 1+2 and 1+1+1 resonance enhanced multiphoton ionization (REMPI) mechanisms. Bands associated with the other Rydberg states were generated by a 2+1 REMPI mechanism. The spectrum of the GeCl radical arose from 2+1 REMPI excitation through the C[script '] 2Pir (5ppi) and C 2Pir (4ppi) Rydberg states. The C[script '] 2Pir state spin–orbit coupling constant was determined by direct measurement of C[script '] 2Pi1/2<--<--X 2Pi1/2 transitions and ``one photon forbidden'' C[script '] 2Pi3/2<--<--X 2Pi1/2 transitions. A least-squares fit determined the spectroscopic constants of the C[script '] 2Pir 5ppi Rydberg state of GeCl: Te=42 190±5 cm−1, Ae=81.0±3.5 cm−1, omegae=509.2±5.3 cm−1, and omegaexe=3.3±1.1 cm−1. The Journal of Chemical Physics is copyrighted by The American Institute of Physics.
History: Received 12 July 1988; accepted 4 August 1988
Permalink: http://link.aip.org/link/?JCPSA6/89/6064/1
BUY THIS ARTICLE   (US$24)
Download PDF (588 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 33.80.Rv
    Molecular spectra and interactions of molecules with photons Photon interactions with molecules Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states)
  • 35.20.Pa
    Experimentally derived information on atoms and molecules; instrumentation and techniques Molecules Rotation, vibration, and vibrationrotation constants
  • YEAR: 1988

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (16)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. R. D. Johnson, III, B. P. Tsai, and J. W. Hudgens, J. Chem. Phys. 89, 4558 (1988).
  2. J. W. Hudgens, C. S. Dulcey, G. R. Long, and D. J. Bogan, J. Chem. Phys. 87, 4546 (1987).
  3. R. D. Johnson, III and J. W. Hudgens, J. Phys. Chem. 91, 6189 (1987).
  4. S. Sharpe and P. M. Johnson, Chem. Phys. Lett. 107, 35 (1984).
  5. C. S. Dulcey and J. W. Hudgens, Chem. Phys. Lett. 118, 444 (1985).
  6. R. D. Johnson, III, E. Fang, and J. W. Hudgens, J. Phys. Chem. 92, 3380 (1988).
  7. Advances in Multiphoton Processes and Spectroscopy, edited by S. H. Lin (World Scientific, Singapore, 1988), Vol. 4, pp. 171–296.
  8. R. W. Martin and A. J. Merer, Can. J. Phys. 52, 1458 (1974).
  9. R. W. Martin and A. J. Merer, Can. J. Phys. 51, 125 (1973).
  10. N. Badowski and W. Zyrnicki, J. Phys. B 19, 2571 (1986).
  11. G. A. Oldershaw and K. Robinson, Trans. Faraday Soc. 66, 532 (1970).
  12. W. J. Balfour and K. S. Chadrasekhar, J. Phys. B 19, L187 (1986).
  13. We note that two photon selection rules also permit 2Sigma<--<--X2Pi1/2, 2Sigma<--<--X2Pi3/2, 2Delta3/2<--<--X2Pi1/2, 2Delta5/2<--<--X2Pi3/2, 2Phi7/2<--<--X2Pi3/2, and 2Phi5/2<--<--X2Pi1/2 transitions through 2Sigma, 2Pi, and 2Delta virtual states. The excitation schemes may be constructed in analogy with Fig. 1.
  14. K. C. Kim, D. W. Setser, and C. M. Bogan, J. Chem. Phys. 60, 1837 (1974).
  15. M. A. Wickramaaratchi and D. W. Setser, J. Phys. Chem. 87, 64 (1983).
  16. F. Melen and I. Dubois, J. Mol. Spectrosc. 124, 476 (1987).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics