Structures and Stabilities of Rings Composed of C₂₀ Cages

抄録

The ring structures with D_nh, D_n, C_nv and C_nh symmetries composed of C₂₀ cages have been investigated using the self-consistent field molecular orbital method. It is found that the formation of the C₂₀-rings is favorable to stability of the C₂₀ systems. The influence of structure symmetries and distortion on the stabilities of the C₂₀-rings is explored. The strain change due to the structure distortion greatly affects the stabilities of the C₂₀-rings. Furthermore, the bonding and electronic properties of the C₂₀-ring are also discussed and compared with those of other fullerene-rings such as C₆₀-rings and C₃₆-rings.