Stereocontrolled self-assembly and photochromic transformation of lanthanide supramolecular helicates. Issue 40 (29th June 2018)

• Record Type: Journal Article
• Authors: Cai, Li-Xuan; Yan, Liang-Liang; Li, Shao-Chuan; Zhou, Li-Peng; Sun, Qing-Fu
• Is Part Of: Dalton transactions. Volume 47:Issue 40(2018)
• Page Start: 14204
• Page End: 14210
• Publication Date: 2018-06-29
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt01808a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Stereocontrolled self-assembly of a dinuclear triple-stranded europium helicate (Eu2 L3 ) based on DTE-functionalized ligands has been achieved via the chiral-induction strategy. Abstract : Stereocontrolled self-assembly of a dinuclear triple-stranded europium helicate (Eu2 L3 ) based on DTE-functionalized ligands has been achieved via the chiral-induction strategy. The point-chirality of the ligands is transferred to give either Δ or Λ metal-centers and hence leads to the overall P or M helical senses. CD spectroscopy and NMR enantiomeric differentiation experiments have confirmed the formation of enantiomers. Moreover, the helicates in solution feature reversible photocyclization and cycloreversion, offering an opportunity to develop as chiroptical switches.