Alkaline earth isotope shift

The deposition of alkaline-earth-metal atoms and ozone molecules at high dilution in argon at 15 K yields species showing intense bands in the i.r. at 800 and 450—650 cm-1. Those at 800 cm"1 showed the appropriate isotopic shifts for assignment of v3 for the ozonide ion, Oj. The use of scrambled isotopic ozones indicates that the metal cation is symmetrically bound to the ozonide ion, which contains three O atoms, with two of these equivalent. In addition, calcium and barium mixtures with ozone contain several metal oxide species tentatively identified as (CaO)2, Ca02,BaO, and (BaO)2, respectively.73... 

Fig. 2. Relation between hydration number of alkali and alkaline earth ions and Pauling s ionic radius with an assumed isotopic shift...

E. Matthias, H. Rinneberg, R. Beigang, A. Timmermann, J. Neukammer, K. Liicke Hyperfine structure and isotope shifts in alkaline earth atoms, in Atomic Physics 5, ed. by I. Lindgren, A. Rosen, S. Svanberg (Plenum, New York 1983) p.543... 

C.J. Lorenzen, K. Niemax, L.R. Pendrill, Isotope shifts of energy levels in the naturally abundant isotopes of the alkaline earth elements, submitted to Ehys. Rev (1982). 

HYPERFINE STRUCTURE AND ISOTOPE SHIFTS OF RYDBERG STATES IN ALKALINE EARTH ATOMS... 

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