Title
Chiral Self-Sorting Process with Ditopic Ligands: Alternate or Block Metallopolymer Assembly as a Function of the Metal Ion
Author
Maya Marinova, Maria Torres-Werlé, Grégory Taupier, Aline Maisse-François, Thierry Achard, Alex Boeglin, Kokou Dodzi “Honorat” Dorkenoo, Stéphane Bellemin-Laponnaz
Year
2019
Journal
ACS Omega
Abstract
We report an extensive study on the coordination behavior of chiral ditopic bridging ligands, which lead to metallosupramolecular polymers in the presence of Zn(II) and Cu(II) in solution. With the help of UV–vis and circular dichroism spectroscopies, we show that the metallopolymer sequence can be controlled by chirality and by the choice of the metal ion. Although the formation of a block metallopolymer proceeds through the assembly of homoleptic complexes, an alternate metallopolymer may be obtained only when heteroleptic complexes are formed. This demonstrates how the prevalent coordination geometries at metal centers may be used to control the sequences of the metallopolymers.
Instrument
J-810
Keywords
Circular dichroism, Coordination chemistry, Polymers, Ligand binding, Stereochemistry, Materials