Odd Hassel (17 May 1897 – 11 May 1981) was a Norwegian chemist who won the Nobel Prize in Chemistry in 1969 for his ground-breaking research on the structure of molecules
After completing his education, he worked as a research assistant at the University of Oslo. He later became an associate professor of physical chemistry at the same institution in 1925. In the 1930s, he began his ground-breaking research on the three-dimensional structure of molecules, which would later earn him the Nobel Prize.
His research involved the use of X-ray crystallography to determine the structure of organic molecules. He discovered that molecules with non-planar structures are more stable than those with planar structures. This discovery became known as the “Hassel Effect” and was a major breakthrough in the field of chemistry.
Hassel also made significant contributions to the study of dipole moments in molecules. His work led to the development of the Hassel-Bjerrum theory, which explains the relationship between the dipole moment of a molecule and its chemical structure.
He continued to work as a professor of physical chemistry at the University of Oslo until his retirement in 1964. He remained active in the scientific community, however, and continued to publish research papers throughout his lifetime.
He died on 11 May 1981, in Oslo, Norway.
