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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
Optically-pure triptycene-based metallomacrocycles and homochiral self-sorting assisted by ladder formation
Kosuke Oki1, Wei Zheng1, Eiji Yashima1
1Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan. ikai@chembio.nagoya-u.ac.jp.
Optically pure triptycene-based metallomacrocycles were synthesized using platinum(II) and unique ligands. This study also achieved enantiomeric metallomacrocycles through self-sorting, highlighting the ligand structure
Area of Science:
- Supramolecular Chemistry
- Coordination Chemistry
- Organic Synthesis
Background:
- Triptycene derivatives offer unique structural rigidity.
- Metallomacrocycles are important in host-guest chemistry and catalysis.
- Controlling chirality in self-assembled structures is a key challenge.
Purpose of the Study:
- To synthesize optically pure triptycene-based metallomacrocycles.
- To explore the self-sorting of racemic ligands for chiral metallomacrocycle formation.
- To investigate the role of ligand structure in self-assembly.
Main Methods:
- Coordination-driven self-assembly of enantiopure triptycene-derived ladder-type bis(benzo[f]isoquinoline) ligands.
- Reaction with cis-platinum(II) complex.
- Coordination-driven homochiral self-sorting of racemic ligands.
Main Results:
- First synthesis of optically pure triptycene-based metallomacrocycles.
- Successful production of enantiomeric homochiral metallomacrocycles via self-sorting.
- Demonstration that shape-persistent ladder-structured ligands facilitate chiral self-sorting.
Conclusions:
- Optically pure triptycene-based metallomacrocycles can be synthesized via coordination-driven self-assembly.
- Homochiral self-sorting is an effective strategy for generating enantiomeric metallomacrocycles.
- The rigidity and structure of triptycene-based ligands are crucial for controlling chirality in self-assembly.
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