Chiral Toroid 240: T240

The previous two C240 isomers both have an inversion center. Hence, both of them are achiral, which means the mirror of the molecule is identical to itself. However, it is not difficult to find out it is possible to generate a chiral toroid by slight shifting of pentagons on the outer rim by one unit cell. Here is the result of the chiral isomer of the previous two structures.