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Multicomponent Cylindrical Assemblies Driven by Amidinium–Carboxylate Salt‐Bridge Formation
Author(s) -
Katagiri Hiroshi,
Tanaka Yoshie,
Furusho Yoshio,
Yashima Eiji
Publication year - 2007
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.200603921
Subject(s) - carboxylate , zinc , chemistry , porphyrin , molecule , amidine , salt (chemistry) , intercalation (chemistry) , salt bridge , stereochemistry , helicity , combinatorial chemistry , polymer chemistry , organic chemistry , physics , quantum mechanics , biochemistry , mutant , gene
An unexpected twist : Three chiral amidine‐functionalized strands and two benzenetricarboxylic acid molecules self‐assemble into a 3:2 cylindrical complex with controlled helicity through amidinium–carboxylate salt‐bridge formation. A related 4:2 cylindrical complex composed of two zinc porphyrin units and four chiral strands twists into one direction upon encapsulation of 4,4′‐bipyridine through coordination to the zinc centers (see picture).