### Progress on Electron Counting Rules of Clusters

#### Abstract

The equations calculating the number of valence electrons on the boranes and heteroboranes are different from other simple condensed clusters such as the condensed organometallics and transition metal clusters. The equations calculating the number of valence electrons greatly differ between the condensed boranes and heteroboranes with the non-condensed boranes and heteroboranes too. These equations calculating the number of valence electrons on simple condensed clusters are all derived from the noble gas rule and Wade’s rule in the theory. The noble gas rule and Wade’s rule could be also applied to the high-nuclearity transition metal clusters, the equation details calculating the number of valence electrons is studied. The application ranges of the noble gas rule, Wade’s rule, and 6m+2n electron rule are extended. The calculating results are satisfying comparing with actual facts.

#### Keywords

Boranes, Metal clusters, Wade’s rule, The noble gas rule, Mingos’ condensation rule, Tang and Li’s structural rule, 6m+2n electron rule.Text

DOI

10.12783/dtcse/cmso2019/33636

10.12783/dtcse/cmso2019/33636

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