August Kekulé
He proposed the ring structure of benzene, a crucial breakthrough in organic chemistry.
Quotes by August Kekulé
Every moment is a fresh beginning.
The pursuit of knowledge is a divine quest.
We are all travelers on the same journey, seeking the same truth.
The universe is a puzzle, and we are constantly trying to put the pieces together.
The carbon atom is tetravalent.
The atoms of the elements are not indivisible, but are composed of smaller particles.
The atoms of carbon possess the power of combining with each other, and thus forming chains.
The atoms of carbon are capable of uniting with each other in various ways, so as to form compounds of different degrees of complexity.
The number of atoms of hydrogen, chlorine, oxygen, etc., which are combined with one atom of carbon, is always four.
The constitution of organic compounds can be represented by means of graphic formulae, in which the atoms are represented by symbols, and the bonds by lines.
The benzene molecule is a ring of six carbon atoms, with alternating single and double bonds.
The atoms are not at rest, but are in constant motion.
The chemical properties of a compound depend not only on the nature and number of its constituent atoms, but also on their arrangement.
The concept of valency is a purely empirical one, and does not imply any particular physical mechanism.
The idea of a fixed valency for each element is a useful simplification, but it is not an absolute truth.
The development of organic chemistry is essentially the history of the development of the theory of valency.
The true method of scientific investigation is to observe, to experiment, to reason, and to conclude.
The chemist must be an artist, as well as a scientist.
The imagination is a powerful tool in scientific discovery.
The structure of molecules is not a mere hypothesis, but a reality.