Libby, Sigma '41 (1960) "for his method to use carbon-14 for age determination in archaeology, geology, geophysics, and other branches of science." Lars Onsager, Chi '50 (1968) "for the discovery of the reciprocal relations bearing his name, which are fundamental for the thermodynamics of irreversible processes." Paul J. Flory, Tau '50 (1974) "for his fundamental achievements, both theoretical and experimental, in the physical chemistry of the macromolecules." William N. Lipscomb, Alpha Gamma '39 (1976) "for his studies on the structure of boranes illuminating problems of chemical bonding." Herbert C. Brown, Beta Nu '60 (1979) "for [his] development of the use of boron-containing compounds into important reagents in organic synthesis." R. Bruce Merrifield, Beta Gamma '44 (1984) "for his development of methodology for chemical synthesis on a solid matrix." Elias J. Corey, Zeta '53 (1990) "for developing new ways to synthesize complex molecules ordinarily found in nature." Rudolph A. Marcus, Zeta '55 (1992) "for his contributions to the theory of electron transfer reactions in chemical systems." Alan G. MacDiarmid, Alpha '51 (2000) "for the discovery and development of conductive polymers" Richard F. Heck, Beta Gamma '50 (2010) "for palladium-catalyzed cross couplings in organic synthesis" Carolyn R. Bertozzi, Sigma '01 (2022) "for the development of click chemistry and bioorthogonal chemistry" Nobel Prize in Physiology or Medicine Edward Adelbert Doisy, Zeta '43 (1943) "for his discovery of the chemical nature of vitamin K." E. L. Tatum, Alpha '30 (1958) "for [his] discovery that genes act by regulating definite chemical events." Robert W. Holley, Zeta '40 (1968) "for [his] interpretation of the genetic code and its functions in protein synthesis." George H. Hitchings, Omicron '29 (1988) "for [his] discoveries of Important Principles for Drug Treatment." Paul C. Lauterbur, Gamma '49 (2003) "for their discoveries concerning magnetic resonance imaging" Nobel Prize in Physics Raymond Davis Jr., Alpha Rho '35 (2002) "for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos." Nobel Prize in Peace Linus C. Pauling, Sigma '40 (1962) "for warning of the dangers of radioactive fallout in nuclear weapons testing and war." Priestley Medal Farrington Daniels, Beta 1908, (1957). 1953 President of the American Chemical Society, solar and nuclear energy pioneer. Roger Adams, Zeta '12, (1946). Developed Adams' catalyst, 1935 president of the American Chemical Society, 1950 president of the American Association for the Advancement of Science. James Bryant Conant, Omicron '12, (1944). Early contributor to physical organic chemistry, President