No free photograph
Louis Plack Hammett
American chemist (1894-1987) · United States · On the map · Scientists · Died at 92
Louis Plack Hammett was an American physical chemist. He is known for the Hammett equation, which relates reaction rates to equilibrium constants for certain classes of organic reactions involving substituted aromatic compounds.
Louis Plack Hammett is read about 8 times a day, in 15 languages.
A typical day, 30 days to 20 June 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
Something wrong?A life in dates
1987Died9 February 19871975Barnard Medal for Meritorious Service to ScienceAward1967National Medal of ScienceAward1966James Flack Norris Award in Physical Organic ChemistryAward1961Priestley MedalAwardWillard Gibbs AwardAward1960James Flack Norris Award for Outstanding Achievement in the Teaching of ChemistryAward1957William H. Nichols MedalAward1894Born7 April 1894
Also in Deutsch
Awards
About this person
He is also known for his research into superacids and his development of a scheme for comparing their acidities based on what is now known as the Hammett acidity function. The Curtin-Hammett principle bears his name.
Country
United States
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1894 to 1987 · aged 92
The same award as Louis
André WeilBoth received Barnard Medal for Meritorious Service to ScienceFarrington DanielsBoth received James Flack Norris Award for Outstanding Achievement in the Teaching of Chemistry
Peter J. StangBoth received James Flack Norris Award in Physical Organic ChemistryBernd GieseBoth received James Flack Norris Award in Physical Organic ChemistryEdgar Bright WilsonBoth received James Flack Norris Award for Outstanding Achievement in the Teaching of Chemistry
Benoit MandelbrotBoth received Barnard Medal for Meritorious Service to Science