ElVibRot calculations have been performed in the diabatic basis by initializing a Gaussian wavepacket in the lowest-energy electronic state in the negative x region. The Gaussian is centered at x c = -8.0 a 0 , and we considered three different values of the initial momentum p 0 = hk 0 , defined by the values k 0 = 10, 15, 20 a -1 0 , with an initial width γ 0 = 20/k 0 .