An article that describes a procedure for counting electrons in compounds that feature μ–L groups was recently reported in Chemical Communications. Significantly, this article reconciles the long standing problem between the M–M bond orders calculated theoretically for certain bridging carbonyl compounds, e.g. Fe2(CO)9, and those predicted by using electron counting. See: “The Occurrence and Representation of Three-Centre Two-Electron Bonds in Covalent Inorganic Compounds” by Jennifer C. Green, Malcolm L. H. Green, and Gerard Parkin Chem. Commun. 2012, 48, 11481–11503.
Polly L. Arnold of the University of Edinburgh has joined the CBC Advisory Board
Professor Nilay Hazari of Yale University has joined the CBC Advisory Board