Figure 2.

A section of the cluster B228H24; labels from 1 to 17 are also referred to B60H12 in black (red) are reported the principal three-center–two-electron Mayer bond order indices of cluster B6 (B24)

Forte et al. Nanoscale Research Letters 2009 5:158-163   doi:10.1007/s11671-009-9458-8