2021 Fiscal Year Research-status Report
Design and synthesis of responsive, elastic, porous single crystalline materials using mechanically interlocked molecules
| Project/Area Number |
20K15251
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
メン ウェンジン 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 研究員 (30838470)
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | catenane |
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| Outline of Annual Research Achievements |
The synthesis of asymmetric amide-based catenanes was explored. It was found that the substituent greatly influences thesolubility of the intermediate and subsequently the yield of the desired catenane. Alkyl chains with enough length
can increase the solubility of the key intermediate, allowing the isolation of the desired product. One of the target catenanes was successfully prepared. This catenane formed crystals when assembled with Cu(II) ions. However,
the crystals were too fragile to be characterized by single-crystal X-ray crystallography.
Part of the funding was used to support the publication of the preliminary study of this work.
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| Current Status of Research Progress |
Current Status of Research Progress
3: Progress in research has been slightly delayed.
Reason
We are pleased that one of the desired catenane ligands was successfully prepared.
However, our experience showed that the formation of single crystals which is robust enough for handling is not
straightforward. More efforts are therefore required in the synthesis of single crystals.
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| Strategy for Future Research Activity |
Different synthetic conditions can be tested for the formation of single-crystal with current ligands.
To understand the relationship between ligand structure and crystal property,
ligands with more functionality may also be designed and synthesized.
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| Causes of Carryover |
Funding will be used to purchase necessary chemicals and lab equipment and pay for the user fees for common equipment.
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