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Conversion of Cobalt(II) Porphyrin into a Helical Cobalt(III) Complex of Acyclic Pentapyrrole
Author(s) -
Yamanishi Katsunori,
Miyazawa Masamichi,
Yairi Takeshi,
Sakai Shintaro,
Nishioko,
Kobori Yasuhiro,
Kondo Mitsuru,
Uchida Fumio
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.201102144
Subject(s) - porphyrin , cobalt , enantiomer , ligand (biochemistry) , chemistry , stereochemistry , chirality (physics) , crystallography , combinatorial chemistry , photochemistry , organic chemistry , physics , biochemistry , nambu–jona lasinio model , receptor , chiral symmetry breaking , quantum mechanics , quark
The turn of the screw : The Co II complex of a porphyrin ligand with a pendant ortho ‐amidophenyl group converted into a helical Co III complex with an acyclic pentapyrrole ligand upon addition of a coordinating base and exposure to O 2 (see picture, Co pink, N blue, O red, C gray). The enantiomers of the complex were separated and characterized, and preferential induction of an ( M )‐helical complex by addition of chiral bases was demonstrated.