Monday, October 15, 2012

The occurrence and representation of three-centre two-electron bonds in covalent inorganic compounds

The occurrence and representation of three-centre two-electron bonds in covalent inorganic compounds:
Chem. Commun., 2012, Advance Article
DOI: 10.1039/C2CC35304K, Feature Article
Jennifer C. Green, Malcolm L. H. Green, Gerard Parkin
3-Centre 2-electron (3c-2e) interactions can be classified according to whether the pair of electrons are provided by two atoms (Class I) or by one atom (Class II). Recognizing that compounds with symmetrically bridging carbonyl ligands can belong to Class II provides a simple rationalization of the absence of M-M bonds in molecules such as Fe2(CO)9 and [CpFe(CO)2].
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