Influence of conformation isomers in alkyl chains on Ag(I)-coordinated supramolecular architectures
NEW JOURNAL OF CHEMISTRY(2023)
Abstract
We report Ag(I)-coordinated supramolecular architectures of a terpyridine-based ligand bearing an alanine moiety and a trans- or cis-double bond in the alkyl chain in the presence of AgNO3 (0.5 and 1.0 equiv.) in H2O and dimethyl sulfoxide (DMSO) (1 : 4 v/v). In the presence of AgNO3, trans-L exhibited a helical ribbon structure while cis-L exhibited a linear ribbon structure. Furthermore, self-assembled trans-L exhibited a strong circular dichroism (CD) signal helicity. In contrast, self-assembled cis-L formed in the presence of 0.5 and 1.0 equiv. of AgNO3 showed a weak CD signal, indicating that the cis-L molecules did not form a helical arrangement in the supramolecular architecture.
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