John I. Brauman

Brauman was a Stanford physical-organic chemist who pioneered the study of gas-phase ion chemistry, showing that the acidity and basicity of many organic compounds reverse between solution and the gas phase — a foundational insight into intrinsic molecular reactivity. He received the National Medal of Science in 2002 (awarded 2003). His Jewish background is noted in Jewish-heritage listings but is not detailed in standard biographies.