Durrant has proposed a simple but quantitative measure of hypervalency
A researcher in the UK has presented a controversial new definition for hypervalency that may ignite debates over atomic charge and allow students to draw nitrogen atoms with five covalent bonds.
Marcus Durrant from the University of Northumbria describes his account of hypervalency as going back to the drawing board. By bringing together electron counts on atoms in different resonance structures, he presents a valence electron equivalent parameter to indicate an overall number of electrons associated with each atom. A count greater than eight defines hypervalency. Read the full article in Chemistry World»
Read the original journal article in Chemical Science – it’s open access:
A quantitative definition of hypervalency
Marcus C. Durrant
DOI: 10.1039/C5SC02076J, Edge Article
