Fig. 36: Rietveld refinement of the diffraction profile of Ba4C60 at 295 K between 3° and 60° in 2. The observed data are shown as blue crosses and the calculated fit as a solid red line. The intensity has been multiplied by a factor of 2 above 17° in order to facilitate observation of weaker reflections. The difference curve is shown as the green line in the base of the figure with ticks marking the positions of the Bragg reflections from Ba4C60 (majority phase: 86.7%, lower most), Ba6C60 (minority phase: 11.2%) and Ba3C60 (minority phase: 2.1%, upper most). Peaks due to barium oxide were excluded.