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Internally 1,4‐Phenylene‐Bridged meso Aryl‐Substituted Expanded Porphyrins: The Decaphyrin and Octaphyrin Cases
Author(s) -
Anand Venkataramanarao G.,
Saito Shohei,
Shimizu Soji,
Osuka Atsuhiro
Publication year - 2005
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.200502769
Subject(s) - phenylene , aryl , ring (chemistry) , unit (ring theory) , bridge (graph theory) , crystallography , polymer chemistry , chemistry , materials science , stereochemistry , mathematics , organic chemistry , polymer , medicine , alkyl , mathematics education
Current affairs : Incorporation of a 1,4‐phenylene bridge into meso aryl‐substituted decaphyrin and octaphyrin has a profound impact on the structural and electronic properties of the macrocycles. Bridged decaphyrin has two oxidation states, one of which shows a rather strong diatropic ring current. X‐ray crystal structure analyses reveal bridged octaphyrin possesses a p ‐quinodimethane unit, while bridged decaphyrin has a phenylene unit (see picture).