The composition of the Xe system changed from mainly atomic at low pressure to molecular at high pleasure. The energy levels of this system varied also. By using the fluorescence of the first and second continuum measured near the resonant line of Xe at 147 nm at various pressure conditions, we observed the formation of Xe-2 and the energy levels for the excited states Al-u, B0(u)(+) and B'1(u) states. In a potential energy diagram, this corresponds to the change of energy levels from R approximate to infinity to finite R.