Lanthanide supramolecular helical diastereoselective breaking induced by point chirality: mixture or P-helix, M-helix

Chi Tung Yeung, Wesley Ting Kwok Chan, Siu-Cheong Yan, Kwan-Leung Yu, King-Him Yim, Wing-Tak Wong*, Ga-Lai Law*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The self-assembly of lanthanide (europium or lanthanium) bimetallic triple helicates from two closely related chiral ligands resulted in a very different supramolecular phenomenon. One gave rise to significantly diastereoselective formation of a triple helicate, whereas the other led to diastereoselective breaking to generate a mixture of P and M diastereomers in ∼1 : 1.1 ratio. The first X-ray crystal structure of a chiral ligand based lanthanide triple-helicate indicates that successive CH–π interactions were found to maintain the supramolecular helical structure.
Original languageEnglish
Pages (from-to)592-595
Number of pages4
JournalChemical Communications
Issue number3
DOIs
Publication statusPublished - 11 Jan 2015

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