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 I₂ + Xe mixtures to the I₂(f, v_f = 9, J_f ≈ 55) state as well as time-gated luminescence spectra measured with Δt = 10-70 ns time delay from the beginning of the laser probe pulse, I₂ (f, v_f, J_f over(←, 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 I₂(f, v_f = 9, J_f ≈ 55) and I₂(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 I₂(f, v_f → B, v_B) one have to be used. The I₂(f and F) vibrational state distributions observed in experiments can be formed as result of predissociation of long-life XeI₂(IP) complexes. The quasi-continuum in the λ ≈ 330-350 nm spectral ranges can belong to the XeI₂(f → B) transition.