Av. Tulub et al., Theoretical study of possible decay channels and lifetime of the metastable triplet state of the He2O2+ ion, OPT SPECTRO, 84(1), 1998, pp. 29-33
Based on quantum-chemical calculations, the possibility of the existence of
the [He2O](2+) dication with a linear atomic configuration in the triplet
1(3)Sigma(g)(-) State is found. The equilibrium internuclear distances acid
vibrational spectrum are found, and the lifetime tau similar to 5 x 10(2)
s for this dication is estimated.