Results of the first studies of temporal behavior of luminescence in the λ = 235–275 nm and λ = 315–350 nm spectral ranges following optical-optical double resonance (OODR) excitation of I 2 + Xe mixtures to the I 2(f, v f = 9, J f ≈ 55) state as well as time-gated luminescence spectra measured with Δ t = 10–70 ns time delay from the beginning of the laser probe pulse, I 2 ( f, v f , J f ← hv p B, v B , J B ) have been described. The spectra look as quasi-continua superimposed with transition bands from the optically and collisionally populated I 2(f, v f = 9, J f ≈ 55) and I 2(F, v F = 1–11) states. The temporal histories of luminescence at the bands and quasi-continua differ significantly. It is shown that, to describe the quasi-continuum in the λ = 315–350 nm time-gated experimental spectra, transitions other than the I 2(f, v f → B, v B) one have to be used. The I 2(f and F) vibrational state distributions observed in experiments can be formed as result of predissociation of long-life XeI 2(IP) complexes. The quasi-continuum in the λ ≈ 330–350 nm spectral ranges can belong to the XeI 2(f → B) transition.