The synthesis of cryptands allowed researchers to engineer cage-like molecules capable of trapping specific guests within their cavities. Jean-Marie Lehn, born in 1939 in Rosheim, France, pioneered this approach by shifting the focus of chemical inquiry from the bonds within a single molecule to the interactions between molecules, effectively launching the field of supramolecular chemistry.
Academic Foundations and Early Research
Lehn completed his education at the University of Strasbourg, where he studied physical, chemical, and natural sciences. After earning his doctorate in France, he spent a year at Harvard University in the laboratory of Robert Burns Woodward, participating in the synthesis of vitamin B12. Upon his return to Strasbourg in 1966, he took a position as an assistant professor, applying his expertise to the study of molecular physical properties.
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In 1968, Lehn engineered cage-like structures designed to house specific molecules. He termed these structures cryptands, providing a structural basis for molecular recognition. This work moved chemistry beyond traditional bonding to examine the complex, fragile assemblies known as host-guest interactions. His approach clarified how biological systems recognize and distinguish between molecular structures, which remains vital in the development of drug synthesis.
Professional Appointments and Recognition
Lehn joined the Collège de France in 1979 as a professor. His contributions to the chemical sciences were formally recognized with the 1987 Nobel Prize in Chemistry, shared with Donald Cram and Charles Pedersen. Throughout his career, he held positions at the Louis Pasteur University, the Karlsruhe Institute of Technology, and served on the Reliance Innovation Council. He remains a member of numerous scientific societies, including the Royal Society and the French Academy of Sciences.
Fast facts
- Born: 1939, Rosheim, France
- Field: Supramolecular chemistry
- Nobel Prize in Chemistry: 1987
- Education: University of Strasbourg, Harvard University
- Key innovation: Synthesis of cryptands
- Officer of the National Order of Merit: 1993
- Humboldt Prize: 1983
- Marie Curie Medal: 2022
Questions readers ask
What is supramolecular chemistry?
It is the study of intermolecular attractions and host-guest molecular assemblies, focusing on how molecules recognize and interact with each other.
What are cryptands?
They are cage-like molecules with an internal cavity designed to lodge specific other molecules.
Achievements
- Officer of the National Order of Merit — 1993
- Knight of the French Order of Academic Palms — 1989
- Nobel Prize in Chemistry — 1987
- Grand Officer of the Legion of Honour — 2014
- Affiliated with Harvard University, Collège de France and University of Strasbourg
- Educated at University of Strasbourg and Harvard University
- Worked as chemist, professor and university teacher
