Toroidal form of carbonC360

This paper proposes a new carbon form in the shape of a cage torus. This toroidal form of carbon contains 360 carbon atoms, formed in fivefold, sixfold, and sevenfold rings. Using a Stillinger-Weber-type potential, molecular-dynamics simulations show that the cohesive energy of the ${\mathrm{C}}_{360}$ torus is lower than that of ${\mathrm{C}}_{60}$ fullerenes and that the proposed structure is thermodynamically stable.