| Date | Text | |
|---|---|---|
13 Jul 1896
August Kekulé |
death August Kekulé Died 13 Jul 1896 at age 66 (born 7 Sep 1829). Friedrich August Kekulé von Stradonitz was a German chemist who devised the ring structure of carbon atoms in organic molecules. Although at first intending to study as an architect, his career in chemistry began after hearing Justus Liebig's lectures. He determined the tetravalence of carbon, and its ability to link in chains and form polyvalent radicals (1857-58). Further, he envisioned double or even triple bonds between carbon atoms in those chains, and isomers being molecules with the same atoms arranged differently. From a vision of a serpent catching its own tail, Kekulé realized that benzene has a ring structure (1863). Kekulé's ideas became the foundation of structural theory in organic chemistry. |
|
13 Jul 1896
Friedrich August Kekulé von Stradonitz |
death Friedrich August Kekulé von Stradonitz Friedrich August Kekulé von Stradonitz (born 1829), organic chemist. |
OnThisDay.net