Hermann Franz Moritz Kopp, German chemist, was born at Hanau, where his father, Johann Heinrich Kopp, a physician, was professor of chemistry, physics and natural history at the local lyceum.
Theoretical chemistry is the branch of chemistry which develops theoretical generalizations that are part of the theoretical arsenal of modern chemistry: for example, the concepts of chemical bonding,
Jacobus van 't Hoff (1852–1911), an influential theoretical chemist and the first winner of the Nobel Prize in Chemistry.