Abstract
New measurements of satellites of the mercury 2537 Å line in the presence of krypton are reported. A high resolution spectrophotometer with a double-channel detecting system was used. The results obtained show that the structure appearing in the wings of the perturbed line arises from two effects: pressure induced satellite bands of HgKr van der Waals complexes and vibrational spectrum of the Hg 2 dimer. The contribution of the latter is demonstrated experimentally by a careful study of the spectrum of pure mercury vapour. It has been shown that this effect is responsible for the series of sharp red bands observed previously in fluorescence by some authors and interpreted there as a result of transitions between bond and free vibrational states in Hgnoble gas systems.
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