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Updated: Mar 3, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
Stereocontrolled Synthesis of Chiral [2]Catenanes by Coordination-Driven Self-Assembly
Jun-Fei Li1, Hui-Min Lu1, Qiao-Yun Liu1
1Key Laboratory of Magnetic Molecules and Magnetic Information Materials of the Ministry of Education, School of Chemistry and Chemical Engineering, Shanxi Normal University, Taiyuan 030031, China.
Abstract:
Chiral catenanes hold substantial research significance due to their potential applications in stereoselective catalysis, sensing, and chiroptical switching. However, achieving stereocontrolled synthesis of enantiopure supramolecular catenanes with crystallographically characterized structures remains challenging. Herein, we reported the successful construction of two pairs of chiral [2]catenanes with opposite handedness, achieved by coordination-driven self-assembly using pairs of ditopic monodentate ligands bearing L-/d-valine residues coordinated to two binuclear half-sandwich rhodium(III) units, respectively. The resultant metalla-[2]catenanes exhibit complex coconformational mechanical helical chirality and planar chirality arising from the point chirality of the ligands. The results are supported by single-crystal X-ray diffraction, NMR spectroscopy, mass spectrometry, and circular dichroism spectroscopy.
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