Emission spectrum of rare gas dimers in the vacuum UV regions. III. Ne2

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Abstract
Emission spectra of the neon dimer have been studied in the VUV region. Liquid nitrogen cooled neon was excited with a Tesla coil or transformer discharge. Three band systems I, II, and III were observed in the 735–1000 Å range and classified as produced by electronic transitions to the common ground state X0+g(1S0) from the three low lying excited states 1u(3P2), 0+u(3P1), and 0+u(1P1), respectively. Evidence for the existence of potential humps in the lowest two upper states were observed and the hump heights were calculated to be 142±10 and 670±50 cm−1, respectively. Observations of additional spectra, a newly observed emission continuum and two diffuse band groups, are presented.