Experimental and computational investigation of energy transfer between azulene and krypton

Experimental results of energy transfer in crossed molecular beams of excited and cold azulene and Kr are reported and compared with computations performed under identical initial conditions of rotational temperature of 0.5 K and 2.0 K and translational energies of 170, 410, and 780 cm−1. Energy transfer quantities are reported and collisional energy transfer probability density functions, P(E,E′), are given for experiment and computation. The results show that a collision complex is formed at low translational energies and that translation to rotation is a major energy transfer channel. There is good agreement between experiment and theory.