The “approach-induced” and collision-induced transitions from low, vE=8–23, vibronic levels of the I2(E) state

Non-adiabatic , D′, β, γ, δ transitions in the first ion-pair tier of molecular iodine induced by collisions with I2, N2 and CO2

“…3). These CINATs are caused by the short-range, $R À6 polarization interactions [7,12,13]. Results of quantum calculation carried out for M = I 2 [22] show that this interaction increases the population of the non-resonant levels in the shorter R range.…”

“…Our experimental apparatus has been described previously [8][9][10]12,13,16]. In brief, the v E = 8, 13, 19; J E % 55 rovibronic levels are populated using the OODR scheme through the intermediate valence B0 þ u state.…”

“…Strong difference between CINAT characteristics for M = I 2 and Rg is the consequence of various characters of long-range interaction between collision partners [7,[10][11][12][13]. The interaction between the E-D transition electric dipole and the permanent quadrupole of M, $R À4 , is dominant in the M = I 2 (X) case.…”

“…M other IP statesÞ non-adiabatic transitions induced by collisions with molecular partners different from the I 2 (X) is very scarce. Data on kinetics of the transitions from the E state to the D one induced by collisions with N 2 and CF 4 are only available in the literature [7,[12][13][14]. Besides, very recently, Hutchison et al studied I 2 ðE !…”

“…It has been shown, in particular, that CF 4 collision partner gets vibrational excitation to the CF 4 m 3 = 631.2 cm À1 and m 4 = 1283 cm À1 modes in the I 2 ðE ! CF 4 DÞ CINAT [7,12,13].…”