John D. Roberts
An organic chemist who pioneered the use of NMR spectroscopy to map the invisible world of molecules and their reactions.
1918–2016 (age 98)·American chemist·Birthday: June 8·The Greatest Generation
Biography
John D. Roberts helped transform organic chemistry from a descriptive science into a rigorous, mechanistic one grounded in physical principles. Working at the California Institute of Technology, he employed nuclear magnetic resonance (NMR) spectroscopy to solve chemical puzzles. He authored a seminal textbook on NMR that trained a generation of chemists to understand complex signals. His research provided definitive evidence for reaction intermediates like benzyne and non-classical carbocations, concepts once controversial. Roberts was also a dedicated educator and administrator, committed to modernizing chemistry curricula. He ensured that theoretical insight and instrumental analysis became standard training for every aspiring chemist.
The Greatest Generation
1901–1927
Grew up during the Depression, fought World War II, and built the postwar economic boom. Defined by shared sacrifice, institutional trust, and a belief that hard work and loyalty would be rewarded.
John was born in 1918, placing them squarely in The Greatest Generation. The events that shaped this generation — world wars, depression, and rapid industrialization — shaped the world they entered and the choices available to them.
#1 When John Was Born
The biggest hits of 1918
John's Life & Times
The world at every milestone
1918Born
World War I ends; Spanish flu pandemic kills millions
President: Woodrow Wilson
1923Started school
The Great Kanto earthquake devastates Tokyo
President: Calvin Coolidge"Yes! We Have No Bananas" — Billy Jones
1931Became a teenager
The Empire State Building opens as the world's tallest
Gas: $0.17/galPresident: Herbert Hoover"Minnie the Moocher" — Cab CallowayBest Picture: Cimarron
1934Could drive
Gas: $0.19/galPresident: Franklin D. Roosevelt"Stars Fell on Alabama" — Jack TeagardenBest Picture: It Happened One Night
1936Could vote
Jesse Owens wins four golds at the Berlin Olympics
Gas: $0.19/galPresident: Franklin D. Roosevelt"The Way You Look Tonight" — Fred AstaireBest Picture: The Great Ziegfeld
1939Turned 21
World War II begins; The Wizard of Oz premieres
Gas: $0.19/galMin wage: $0.30/hrPresident: Franklin D. Roosevelt"Over the Rainbow" — Judy GarlandBest Picture: Gone with the Wind
1948Turned 30
Israel declares independence; Berlin Blockade begins
Gas: $0.26/galHome: $7,450Min wage: $0.40/hrPresident: Harry S. Truman"Twelfth Street Rag" — Pee Wee HuntBest Picture: Hamlet
1958Turned 40
NASA founded
Gas: $0.31/galHome: $11,050Min wage: $1.00/hrPresident: Dwight D. Eisenhower"Volare" — Domenico ModugnoBest Picture: Gigi
1968Turned 50
Martin Luther King Jr. and Robert Kennedy assassinated
Gas: $0.34/galHome: $14,950Min wage: $1.60/hrPresident: Lyndon B. Johnson"Hey Jude" — The BeatlesBest Picture: Oliver!
1978Turned 60
First test-tube baby born
Gas: $0.63/galHome: $35,300Min wage: $2.65/hrPresident: Jimmy Carter"Shadow Dancing" — Andy GibbBest Picture: The Deer Hunter
1988Turned 70
Pan Am Flight 103 bombed over Lockerbie
Gas: $0.90/galHome: $74,800Min wage: $3.35/hrPresident: Ronald Reagan"Faith" — George MichaelBest Picture: Rain Man
1998Turned 80
Google founded; Clinton impeachment
Gas: $1.06/galHome: $107,300Min wage: $5.15/hrPresident: Bill Clinton"Too Close" — NextBest Picture: Shakespeare in Love
2016Died at 98
Donald Trump elected president; Brexit vote
Gas: $2.14/galHome: $181,700Min wage: $7.25/hrPresident: Barack Obama"Love Yourself" — Justin BieberBest Picture: Moonlight
Key Achievements
- Authored the influential textbook 'Nuclear Magnetic Resonance' (1959), which taught a generation of chemists how to interpret NMR spectra.
- Provided the first definitive evidence for the existence of the short-lived intermediate 'benzyne' through isotopic labeling experiments.
- Served as the Vice President and Provost of the California Institute of Technology, shaping its academic direction.
- Was elected to both the National Academy of Sciences and the American Academy of Arts and Sciences.
Did You Know?
He was an accomplished clarinetist and played in dance bands to help finance his undergraduate education.
During World War II, he worked on the Manhattan Project at the University of Chicago.
He was a founding member of the organic chemistry department at MIT before moving to Caltech.
He received the National Medal of Science in 1990.
“The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.”
