Buckyballs under pressure

A general overview is given over fullerenes under pressure, with an emphasi s on polymeric phases produced by treatment of C-60 and C-70 under high pre ssure. The pressure-temperature phase diagrams of these materials are brief ly reviewed. The discussion centers on recent advances regarding tho detail s of the crystal structures and the electron structures and electronic tran sport properties. in particular for the one- and two-dimensional phases of C-60. Several polymerized phases of C-70 are also discussed.