Accurate ground state potential of Cs2 up to the dissociation limit

Using the method of Doppler-free double resonance polarization spectroscopy transitions from selectively pumped levels (v′, J′) of the D1Σ+u state down to levels (v″, J″) of the X 1Σ+g state with v″= 0–140 have been measured with high accuracy. A long range analysis, based on 21 outer turning points...

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Published in:The Journal of chemical physics 1985-06, Vol.82 (12), p.5354-5363
Main Authors: WEICKENMEIER, W, DIEMER, U, WAHL, M, RAAB, M, DEMTRÖDER, W
Format: Article
Language:English
Subjects:
Atomic and molecular collision processes and interactions
Atomic and molecular physics
Exact sciences and technology
Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions
Physics
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cited_by cdi_FETCH-LOGICAL-c237t-1a973bf6941590d6d0eb4e40e9fedf90913fa2422a1084ca708a2fe1afaa80e63
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creator WEICKENMEIER, W
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WAHL, M
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description Using the method of Doppler-free double resonance polarization spectroscopy transitions from selectively pumped levels (v′, J′) of the D1Σ+u state down to levels (v″, J″) of the X 1Σ+g state with v″= 0–140 have been measured with high accuracy. A long range analysis, based on 21 outer turning points of the IPA potential with v″=110-130 and on calculated exchange energies and second order van der Waals coefficients Cn with n=6, 8, 10, and 12 leads to a dissociation energy De =3649.5±0.8 cm−1 (0.452 49 eV). The influence of the third order C11 contribution and the hyperfine structure on the correct value of De are briefly discussed.
doi_str_mv 10.1063/1.448618
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subjects Atomic and molecular collision processes and interactions
Atomic and molecular physics
Exact sciences and technology
Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions
Physics
title Accurate ground state potential of Cs2 up to the dissociation limit
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