Alan J. Welch
Chem. Commun., 2013,49, 3615-3616
DOI:
10.1039/C3CC00069A,
Viewpoint
The emergence of a set of simple yet powerful electron counting rules following a classic paper by Wade published in 1971 in J. Chem. Soc. D has transformed the way chemists think about the structures of clusters with delocalised skeletal bonding.