Comment on ‘‘Few-atom 3He–4He mixed molecules’’

It is pointed out that a recent work by Nakaichi et al. on few-atom 3He–4He mixed molecules is based on incorrect values of Θ2/M3 and Θ2/M4, where M3 and M4 are the masses of the 3He and 4He atoms. This is shown to affect their conclusion on the 3He(4He)2 system seriously.