Condensed-Matter Energetics from Diatomic Molecular Spectra

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Science  30 Apr 1993:
Vol. 260, Issue 5108, pp. 649-652
DOI: 10.1126/science.260.5108.649


Analyses of molecular spectra and compression data from crystals show that a single function successfully describes the dependence on interatomic separation of both the potential energy of diatomic molecules and the cohesive binding energy of condensed matter. The empirical finding that one function describes interatomic energies for such diverse forms of matter and over a wide range of conditions can be used to extend condensed-matter equations of state but warrants further theoretical study.