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The Conformation and Chirality of α‐Diketones
Author(s) -
Hug W.,
Wagnière G.
Publication year - 1972
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19720550237
Subject(s) - chemistry , glyoxal , chirality (physics) , chromophore , point (geometry) , stereochemistry , computational chemistry , photochemistry , organic chemistry , quantum mechanics , geometry , physics , mathematics , nambu–jona lasinio model , quark , chiral symmetry breaking
Our deductions of the chirality of α‐diketones from the skewed glyoxal model [2] have recently been questioned [1]. In particular it has been suggested [1] that the longest‐wave‐length Cotton effect is not determined by the chirality of the chromophore, but rather by contributions from substituents. Arguments against this view are given here and it is concluded that the skewed glyoxal model is still the best starting point for discussion of the optical activity of α‐diketones. To settle the question unambiguously, further spectroscopic data are necessary, however.