Carbon Substitution on N₂₄ Cages: Crossover between Triangular and Hexagonal Structures

Figure 3

Isomers of N₁₈C₆: (a) isomer T, (b) isomer S, (c) isomer H1, and (d) isomer H2. Carbon atoms are shown in black, and nitrogen atoms are shown in yellow.

(a)

(b)

(c)

(d)