Determination of the long-range potential and dissociation energy of the 1 3Δg state of Na2

Bing Ji, Chin Chun Tsai, Li Li, Thou Jen Whang, A. Marjatta Lyyra, He Wang, John T. Bahns, William C. Stwalley, Robert J. LeRoy

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Abstract

The 1 3Δg state of Na2 has been studied extensively by both filtered fluorescence and ionization detection and analyzed by both Dunham-type expansion and near-dissociation expansion (NDE) models in the analysis. Our observations have covered 99.998% of the potential well depth with the outermost Rydberg-Klein-Rees (RKR) turning point at 28.02 Å. NDE analysis gives Te=28 032.468 (±0.021) cm -1, De=7162.436 (±0.021) cm-1, and Re=3.463 81 (±0.000 28) Å. Significant long-range behavior in the near dissociation levels has been observed. Fitting of the RKR turning points gives the long-range coefficients C5=1.388 (±0.031)×106 cm-1 Å5 and C6=0.4008 (±0.0046)×108 cm-1 Å6. These newly observed results show reasonable agreement with recent theoretical calculations.

Original languageEnglish
Pages (from-to)7240-7254
Number of pages15
JournalThe Journal of Chemical Physics
Volume103
Issue number17
DOIs
Publication statusPublished - 1995 Jan 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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