Vibrational relaxation of N2 aggregates in rare gas matrices

Abstract Vibrational levels of the A 3 Σ + u state are depopulated by non-radiative electronic energy transfer between N 2 molecules due to exchange interaction. The vibrational quantum number v′ is reduced in steps of Δv′ = 2 and in an additional process it is also increased in steps of Δv′ = 3 in the course of relaxation.