Abstract
The liquid systems H2 in argon and H2 in neon have been investigated by neutron scattering. Quasi-elastic and inelastic spectra have been clearly observed, the inelastic spectra being more intense than in pure argon or neon.
A diffusion constant and a frequency of vibration for each case have been extracted and compared with a calculation by Sears. The experimental and calculated vibrational spectra are in fair but not close agreement. However, the diffusion constant for hydrogen in argon is greater than that for pure argon while for hydrogen in neon it is probably smaller than for pure neon.