Sir Christopher Ingold
(1893-1970)

Died aged c. 77

Sir Christopher Kelk Ingold BEM FRS (28 October 1893 – 8 December 1970) was a British chemist based in Leeds and London. His groundbreaking work in the 1920s and 1930s on reaction mechanisms and the electronic structure of organic compounds was responsible for the introduction into mainstream chemistry of concepts such as nucleophile, electrophile, inductive and resonance effects, and such descriptors as SN1, SN2, E1, and E2. He also was a co-author of the Cahn–Ingold–Prelog priority rules. Ingold is regarded as one of the chief pioneers of physical organic chemistry.

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Commemorated on 1 plaque

Chemistry Department University College London During the period 1930-1970 Professor Sir Christopher Ingold pioneered our understanding of the electronic basis of structure, mechanism and reactivity in organic chemistry, which is fundamental to modern-day chemistry.

Christopher Ingold Building, Gordon Street, WC1, London, United Kingdom where they was