Fig. 1: Reactivity of 10-vertex closo-dicarbadecaboranes.
From: Access to cationic polyhedral carboranes via dynamic cage surgery with N-heterocyclic carbenes

All the ten-vertex carboranes show different reactivity towards the carbene and subsequently hydrogen chloride or phosphorus trichloride. closo-1,2-dicarbadecaborane is referred to as ortho (o, red trace); closo-1,6-dicarbadecaborane is referred to as meta (m, blue race), closo-1,10-dicarbadecaborane is referred to as para (p, green trace). .