Nobel Prize in Chemistry 1969

Derek H. R. Barton

Photo: Walter Bird. Nobel Foundation archive

Prize share: 1/2

Odd Hassel

Photo from the Nobel Foundation archive.

Prize share: 1/2

The Nobel Prize in Chemistry 1969 was awarded jointly to Derek H. R. Barton and Odd Hassel "for their contributions to the development of the concept of conformation and its application in chemistry"

To cite this section
MLA style: The Nobel Prize in Chemistry 1969. NobelPrize.org. Nobel Prize Outreach 2025. Wed. 10 Dec 2025. <https://www.nobelprize.org/prizes/chemistry/1969/summary/>

Go to the top of the page

Follow Nobel Week live

Watch the 2025 Nobel Prize lectures, Nobel Week Dialogue, the prize award ceremonies in Oslo and Stockholm and Nobel Peace Prize Forum here at nobelprize.org.

Explore prizes and laureates

Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize.