Issue 17, 2021

Exclusive formation of a meridional complex of a tripodand and perfect suppression of guest recognition

Abstract

Tripodal ligands have been utilized for complexation-induced structural change, but all the tripodal complexes reported so far are facial isomers, which do not completely reduce the recognition ability by closing the binding pocket. We now report the first example of the selective synthesis of a meridional tripodal complex. The tripodal ligand with a 1,3,5-triethyl-2,4,6-tris(methylene)benzene pivot possessing 2,2′-bipyridine on each arm exclusively formed a mononuclear complex with the mer-[Fe(bpy)]2+ unit. The meridional tripodal complex has a unique structure in which one bipyridine unit is self-penetrated. As a result of cavity blockage, the ion recognition property of the tripodand has been successfully suppressed.

Graphical abstract: Exclusive formation of a meridional complex of a tripodand and perfect suppression of guest recognition

Supplementary files

Article information

Article type
Communication
Submitted
09 Jan 2021
Accepted
27 Jan 2021
First published
27 Jan 2021

Chem. Commun., 2021,57, 2124-2127

Exclusive formation of a meridional complex of a tripodand and perfect suppression of guest recognition

H. Morita, S. Akine, T. Nakamura and T. Nabeshima, Chem. Commun., 2021, 57, 2124 DOI: 10.1039/D1CC00146A

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