Conrad Laar | |
---|---|
Born | |
Died | 11 February 1929 | (aged 75)
Nationality | German |
Known for | coining the expression tautomerism |
Awards | Nobel prize |
Scientific career | |
Institutions | Universität Bonn |
Conrad Peter Laar (22 March 1853 – 11 February 1929) was a German chemist.[1] He coined the expression tautomerism in 1885.[2] He also observed the double bond rule in 1885, stating elements with a principal quantum number greater than 2 for their valence electrons (period 3 elements and higher) tend not to form multiple bonds.[3]