Optical-optical double resonance spectroscopy is used to obtain total rate constants, electronic branching ratios, and vibrational product state distributions for non-adiabatic transitions among the first-tier ion-pair states of the I₂ molecule excited to the E 0_g⁺, v_E = 8, 13, 19;J_E ≈ 55 rovibronic levels in collisions with M = CD₃I and CH₃COCH₃. It is shown that I₂ (E over(→, M) D) near-resonant transitions are caused by the interaction between the transition dipole moment of I₂(E-D) and the permanent electric dipole moment of M. The I₂(D) state vibrational levels populated due to polarization interaction accompanied by quasi-resonance excitation of the collision partner are also observed.