Joseph Chatt [SEP] date of birth
Joseph Chatt
Joseph Chatt (6 November 1914 – 19 May 1994) was a renowned British researcher in the area of inorganic and organometallic chemistry. His name is associated with the description of the pi-bond between transition metals and alkenes, the Dewar–Chatt–Duncanson model.
Chatt received his Ph.D. at the University of Cambridge under the direction of F. G. Mann for research on organoarsenic and organophosphorus compounds and their complexes with transition metals. He was employed at Imperial Chemical Industries from 1949 to 1962, during which time
Dewar–Chatt–Duncanson model
The Dewar–Chatt–Duncanson model is a model in organometallic chemistry that explains the type of chemical bonding between an alkene and a metal (π-complex) in certain organometallic compounds. The model is named after Michael J. S. Dewar, Joseph Chatt and L. A. Duncanson.
The π-acid alkene donates electron density into a metal d-orbital from a π-symmetry bonding orbital between the carbon atoms. The metal donates electrons back from a (different) filled d-