Coming 'round to old views of benzene.

Science News | November 15, 1986 | Copyright

Coming 'round to old views of benzene

A new view of the electronic structure of benzene comes nearly full circle to a 121-year-old vision of the molecule. In 1858 Friedrich August Kekule introduced his valence bond theory of chemical combination that he used in 1865 when he suggested a chemical structure for benzene. He argued that the then anomalous chemical properties of benzene were somehow due to the ability of benzene's double bonds to oscillate between two six-carbon ring structures that were identical save for a shifting of the three double bonds.

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