The X1Σg+ electronic state of K2 (original) (raw)

Journal of Molecular Spectroscopy, 1991

Abstract

ABSTRACT Laser induced fluorescence spectra of the A1Σu+ → X1Σg+ system have been recorded by Fourier transform spectrometry. The ground electronic state of the 39K2 molecule is characterized up to v = 75, encompassing 99.3% of the potential depth. A long-range study of the potential energy curve gave the coefficients of the multipolar expansion and the dissociation energy is found to be De = 4451 ± 1.5 cm−1 (0.5519 ± 0.0002 eV).

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