Dinuclear mono-bridged or polymeric lanthanide complexes from one ligand: structural transformation and chiral induction. Issue 1 (5th December 2022)

• Record Type: Journal Article
• Authors: Chen, Ran; Yan, Qian-Qian; Hu, Shao-Jun; Guo, Xiao-Qing; Zhou, Li-Peng; Sun, Qing-Fu
• Is Part Of: Dalton transactions. Volume 52:Issue 1(2022)
• Page Start: 37
• Page End: 43
• Publication Date: 2022-12-05
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d2dt03351h
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : By adjusting the metal/ligand ratio, either a single-ligand bridged dinuclear complex or a metal–organic polymer can be obtained from a semi-rigid achiral bis-tridentate ligand. A linear ee sensing for the auxiliary ligand was realized through ICD. Abstract : We designed and synthesized a semi-rigid bis-tridentate ligand L which could undergo a trans -to- cis conformational transition when coordinated onto lanthanum ions through the rotation of the single bond on the central terphenyl bridge. By adjusting the metal/ligand ratio, a single-ligand bridged dinuclear complex La2 L 3 and an infinitely extending two-dimensional layered metal organic polymer (La2 L 2 ) n can be obtained. Through the induction of the chiral auxiliary ligand G R / S, these two achiral assemblies could both be transformed into the chiral mononuclear three-component complex LaLG R / S . In addition, we also realized a linear ee sensing for the auxiliary ligand by induced circular dichroism.