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How Should Aromaticity Be Described in Porphyrinoids?
Author(s) -
Bröring Martin
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201007442
Subject(s) - annulene , aromaticity , porphyrin , character (mathematics) , chemistry , computational chemistry , stereochemistry , photochemistry , molecule , organic chemistry , mathematics , geometry
“ Porphyrins really are the [18]annulenes of nature ”—This is the title of a report dealing with a new macrocycle (see structure; gray C, white H, blue N), which can be considered as either a porphyrin or an [18]annulene. The spectroscopic data prove the aromatic and porphyrinoid character of the new compound, and support the simple concept of a (4 n +2)π main conjugation pathway as a key criterion for porphyrinoid Hückel aromaticity.