Comparat D. Improved LeRoy–Bernstein near-dissociation expansion formula, and prospect for photoassociation spectroscopy.
J Chem Phys 2004;
120:1318-29. [PMID:
15268257 DOI:
10.1063/1.1626539]
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Abstract
NDE (Near-dissociation expansion) including LeRoy-Bernstein formulas are improved by taking into account the multipole expansion coefficients and the nonasymptotic part of the potential curve. The theory is tested with the Rydberg-Klein-Rees (RKR) potential curve of the Cs(2)(0(g) (-)6s+6p(3/2)) state. Results indicate that the formula could be used to improve the determination of the asymptotic coefficient (within a 1% accuracy) and to extract relativistic correction from photoassociation spectra of long-range potential curve of diatomic molecules.
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