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Effects of Strained Bicyclic Annelation on the Benzene Nucleus: The X‐Ray Crystal Structures of a Triphenylene and Two Anthracene Derivatives
Author(s) -
Cardullo Francesca,
Giuffrida Daniele,
Kohnke Franz H.,
Raymo Françisco M.,
Stoddart J. Fraser,
Williams David J.
Publication year - 1996
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.199603391
Subject(s) - triphenylene , bicyclic molecule , anthracene , alternation (linguistics) , chemistry , benzene , ring (chemistry) , crystallography , stereochemistry , photochemistry , molecule , organic chemistry , linguistics , philosophy
Pronounced bond length alternation in the central aromatic ring is the eye‐catching structural feature of triepoxytriphenylene 1 . By contrast, no significant bond length alternation is observed in the linearly bisannelated compounds 2 and 3 . The key difference is ascribed to the position of annelations with the bicyclic units.