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In his model, the six carbon atoms of benzene form a hexagon with a hydrogen atom attached to every corner. To preserve valence 4 for carbons, the opposite corners of the hexagon are connected by single bonds. It took years of research before the three postulated structures of benzene – by
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Claus, Adolph K.L. (1867) "Theoretische
Betrachtungen und deren Anwendungen zur Systematik der organischen Chemie" (Theoretical considerations and their applications to the classification scheme of organic chemistry),
260:. He described the isomerism by differences in the bond structure of the molecules whereas several other scientists found it more convincing to describe the difference by the relatively new concept of
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221:, oximes and theoretical considerations on the structure of organic molecules. Claus is best known for proposing a model of
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were both proven to be wrong. While the prismane was synthesized in 1973, calculations showed that the synthesis of
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177:. He received his PhD in 1862, and in the same year changed his position and started working at the
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355:(aromatic compounds), pp. 315-347, Claus presents Kekulé's hypothetical structure for benzene (
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Claus mostly worked in organic chemistry where his interests were very diverse and included
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Berichte ĂĽber die
Verhandlungen der Naturforschenden Gesellschaft zu Freiburg im Breisgau
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in 1866 and became assistant professor in the following year. With the retirement of
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347:(Reports of the Proceedings of the Scientific Society of Freiburg in Breisgau),
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Hoffmann, Roald; Hopf, Henning (2008). "Learning from
Molecules in Distress".
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296:(in German), vol. 3, Berlin: Duncker & Humblot, pp. 268–269
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1865 and by Claus – found their place in organic chemistry. Ladenburg's
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Claus synthesized and determined the structure of several
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Katz T. J., Acton N. (1973). "Synthesis of
Prismane".
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209:The structure of benzene proposed by Claus.
387:Journal of the American Chemical Society
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137:(6 June 1838 – 4 May 1900) was a German
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318:Journal fĂĽr Praktische Chemie
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465:19th-century German chemists
286:Berthold Peter Anft (1957),
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153:Claus was born in 1838 in
16:German chemist (1838–1900)
353:Aromatischen Verbindungen
187:Lambert Heinrich von Babo
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367:). See also figures on
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293:Neue Deutsche Biographie
135:Adolf Karl Ludwig Claus
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175:University of Göttingen
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94:University of Göttingen
23:Adolf Karl Ludwig Claus
427:10.1002/anie.200705775
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179:University of Freiburg
219:aromatic substitution
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159:University of Marburg
167:University of Berlin
400:10.1021/ja00789a084
312:Vis, G. N. (1900).
181:. He completed his
225:molecule in 1867.
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197:in the same year.
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111:Scientific career
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183:habilitation
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69:Wutöschingen
67:now part of
59:(1900-05-04)
460:1900 deaths
455:1838 births
324:: 127–133.
80:Nationality
39:6 June 1838
449:Categories
268:References
57:4 May 1900
35:1838-06-06
215:alkaloids
435:18418829
239:prismane
233:(1869),
373:p. 379.
254:isomers
223:benzene
191:Horheim
173:at the
161:, with
143:benzene
139:chemist
73:Germany
65:Horheim
47:Germany
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369:p. 354
361:p. 320
357:p. 317
258:oximes
155:Kassel
84:German
43:Kassel
365:p.326
193:near
431:PMID
241:and
201:Work
149:Life
54:Died
29:Born
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