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Concerning the Structure of Benzene
Author(s) -
Ermer Otto
Publication year - 1987
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198707821
Subject(s) - benzene , diffraction , annulene , alternation (linguistics) , order (exchange) , chemistry , crystallography , computational chemistry , mathematics , physics , philosophy , optics , organic chemistry , linguistics , finance , economics
The D 6 h structure of benzene has not yet been proven —that is the quintessence of an informative discussion in which all available experimental (and theoretical) findings were examined in order to determine whether or not they definitively rule out the “Kekule structure” ( D 3 h .)‐Neither spectroscopic nor diffraction methods of analysis provide data that are in disagreement with the D 3 h , structure. The discussion of the structure of benzene in textbooks should therefore be formulated more carefully. Furthermore, one should exercise caution in analyzing the alternation of CC bond lengths in annulenes by X‐ray diffraction.