Joseph Chatt

Joseph Chatt, CBE (1914–1994) was a renown 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 so-called Dewar-Chatt-Duncanson model.

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Chatt received his Ph.D. at Cambridge University under the direction of F. G. Mann for research on organoarsenic and organophosphorus compounds and their complexes with transition metals.^[1] He was employed at Imperial Chemical Industries from 1949 to 1962, during which time he, often in collaboration with his colleague Bernard Shaw, published influential work on the metal hydrides and metal alkene complexes. He then moved to a professorship at the University of Sussex and subsequently assumed directorship of the Nitrogen Fixation Unit under the Agricultural Research Council.^[2] Using the coordination complex W(N₂)₂(dppe)₂, his group first demonstrated the conversion of a dinitrogen ligand into ammonia. This work provided some of the first molecular models for nitrogen fixation.

Among his many awards, he was recognized with the 1981 Wolf Prize "for pioneering and fundamental contributions to synthetic transition metal chemistry, particularly transition metal hydrides and dinitrogen complexes." He was elected a Fellow of the Royal Society in 1961, and was made a Commander of the Order of the British Empire.^[3]

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