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Paul Havrez und seine Benzolformel (1998)

Heilbronner, Edgar ; Jacques, Jean

Weinheim : Wiley-Blackwell

Chemie in unserer Zeit 32 (1998), S. 256-264

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ISSN: 0009-2851

Keywords: Chemistry ; Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The belgian chemist Paul Havrez (1838-1875) proposed two highly symmetrical, space-filling models for the benzene molecule, only a few months after Kekulé's seminal proposal of a cyclic benzene structure. One of these models is characterized by the revolutionary assumption of equal 3/2 bonds between all neighbouring carbon atoms, in sharp contrast to Kekulé's formula with alternating double and single bonds. With Considerable hind-sight, Havrez's model could be considered as a forerunner of the benzene structure with delocalized π bonds.

Additional Material: 6 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ciuz.19980320505

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