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Adaptable Overhanging Carboxylic Acid Porphyrins: Towards Molecular Assemblies through Unusual Coordination Modes
Author(s) -
Barakat Wael,
Hijazi Ismail,
Roisnel Thierry,
Dorcet Vincent,
Boitrel Bernard,
Le Gac Stéphane
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201900539
Subject(s) - carboxylic acid , supramolecular chemistry , porphyrin , ligand (biochemistry) , coordination complex , coordination sphere , flexibility (engineering) , metal , linkage (software) , stereochemistry , chemistry , crystallography , polymer chemistry , photochemistry , crystal structure , receptor , organic chemistry , biochemistry , statistics , mathematics , gene
A new family of strap porphyrins exhibiting out/in overhanging carboxylic acid stereoisomerism, has been synthesized and investigated for its coordination properties. Their 5,10 linkage allows a significant flexibility of the strap which exhibits various degrees of angulation relatively to the mean porphyrin plane, making the ligand adjustable to the metal it binds. Notably, in the case of Bi(III), a second sphere of coordination plays a crucial role for the side selective insertion of the large metal ion. As a result, inward and outward orientation of the overhanging carboxylic acid function can be tuned, which is of interest for supramolecular coordination assemblies.