title: Lanthanide supramolecular helical diastereoselective breaking induced by point chirality: mixture or P-helix, M-helix.
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.
authors.affiliation: State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. wing-tak.wong@polyu.edu.hk ga-lai.law@polyu.edu.hk.
authors.forename: Chi-Tung
authors.initials: CT
authors.lastname: Yeung
authors.forename: Wesley Ting Kwok
authors.initials: WT
authors.lastname: Chan
authors.forename: Siu-Cheong
authors.initials: SC
authors.lastname: Yan
authors.forename: Kwan-Leung
authors.initials: KL
authors.lastname: Yu
authors.forename: King-Him
authors.initials: KH
authors.lastname: Yim
authors.forename: Wing-Tak
authors.initials: WT
authors.lastname: Wong
authors.forename: Ga-Lai
authors.initials: GL
authors.lastname: Law