He was the principal founder of the theory of chemical structure. In particular he was concerned with the chemical structure of the organic acids and carried out, in sealed tubes, the bromination of succinic acid; from the silver salt of dibromosuccinic acid he prepared optically inactive tartaric acid ; and from the silver salt of the monobromosuccinic acid he obtained maleic acid.
One snake grabbed its own tail, and mockingly the shape whirled before my eyes. Unfortunately, Loschmidt did not publish his theory in a widely read scientific journal. Organic molecules were not in keeping with the dualism concept, but some scientists proposed that they could be derived from a number of simple inorganic molecules.
This theory provided the scientific basis for the dramatic expansion of the German chemical industry in the last third of the 19th century.
My mental eye, rendered more acute by the repeated visions of the kind, could now distinguish larger structures of manifold conformation; long rows sometimes more closely fitted together all twining and twisting in snake-like motion. For organic chemists, the theory of structure provided dramatic new clarity of understanding, and a reliable guide to both analytic and especially synthetic work.
As the snake begins to spin, the hexagon shrinks to fit inside the center of the snake, and one hydrogen atom is attached to each of the carbons Figure 5. Again the atoms gamboled before my eyes.
Upon each click of the mouse, the free carbon closest to the tail atom of the carbon string is linked to, and then pulled towards the tail atom. In he also prepared formic aldehyde in the pure state, thus extending his earlier work on the condensation of the aldehydes.
He proposed that carbon was tetravalent valence of four and that one of the four bonds of the carbon atom could be used to join with another carbon atom. He accordingly spent the winter to study chemistry at Giessen, beginning in the summer semester of He was convinced that it was possible for the chemist to specify this detailed molecular architecture for at least the simpler organic compounds known in his day.
In he was hired as full professor at the University of Ghent, then in he was called to Bonn, where he remained for the rest of his career.
Kekule was born into an upper-middle-class family of civil servants and as a schoolboy demonstrated an aptitude for art and languages, as well as science subjects.
In order to depict the vision of the atoms joining each other and moving around in a snake-like fashion, an algorithm was created to allow for one lead atom to move freely and for the others to join and follow it.
Kekule was not the only chemist to make such claims in this era. As the snake disappears, the carbon hexagon is surrounded by hydrogen atoms References Rothermich, M. Here, too, Adolf von Baeyer studied compounds of arsenic trimethyl. He explained that in substances containing several carbon atoms it must be assumed that some of the affinities of each carbon atom are bound by the affinities of the atoms of other elements contained in the substance, and some by an equal number of the affinities of the other carbon atoms.
Ludwig Georgs-Gymnasium, Darmstadt, Germany Baeyer was later to receive one of the first Nobel Prizes; his teacher did not live long enough for that. Secondary literature includes G.
More evidence was available byespecially regarding the relationships of aromatic isomers. Long rows, in many ways more densely joined; everything in movement, winding and turning like snakes. I turned the chair to the fireplace and fell half asleep. As if by a flash of lightning I awoke ; and this time also I spent the rest of the night in working out the consequences of the hypothesis.
He was instantly aware of the significance of such a closure, and spent the rest of the night determining the consequences of his inspired hypothesis. In his first dream, inhe saw atoms dance around and link to one another. The next click of the mouse releases the chain to move around as a string again.
In Linus Pauling used quantum mechanics to explain more fully the nature of benzene.Friedrich August Kekulé, later Friedrich August Kekule von Stradonitz (7 September – 13 July ) was a German organic chemist.
From the s until his death, Kekulé was one of the most prominent chemists in Europe, especially in theoretical chemistry.
He was the principal founder of the theory of chemical structure. Friedrich August Kekulé was a renowned German organic chemist who was the principal founder of the theory of chemical structure in organic chemistry.
Early Life Friedrich August Kekulé was a German scientist who was born on September 7, in Darmstadt, Germany. Friedrich August Kekulé The German chemist Friedrich August Kekulé () was the founder of structural organic chemistry.
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Friedrich August Kekule von Stradonitz (also August Kekulé) (7 September – 13 July ) was a German organic chemist. One of the most prominent chemists in Europe from the s until his death, especially in the theoretical realm, he was the principal founder of the theory of chemical structure.
Kekule von Stradonitz, (Friedrich) August(b. Darmstandt, Germany, 7 September ; d. Bonn, Germany, 13 July )chemistryKekulé was descended from the Czech line of an old Bohemian noble family, Kekule ze Stradonič Stradonice being a village northeast of Prague.Download