Structural changes with temperature of CCl4 confined in a 1.1 nm slit-shaped carbon nanospace were investigated by neutron diffraction (ND) measurements and radial distribution function f(drdf) analyses. Bulk CCl4 exhibits a plastic crystal (PC) phase between 225.5 and 250 K. In the confined space, although clear phase transition points cannot be determined, f(drdf) suggests that the PC phase extends to temperatures as low as 160 K. The smooth surface of the activated carbon assists the rotational motion of CCl4.