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Formation of a Pillar[5]arene‐Based Two‐Dimensional Poly‐Pseudo‐Rotaxane: Threading and Crosslinking by the Same Guest Molecules
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- Eunji Lee
- Department of Chemistry and Research Institute of Natural Science Gyeongsang National University Jinju 52828 South Korea
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- In‐Hyeok Park
- Department of Chemistry and Research Institute of Natural Science Gyeongsang National University Jinju 52828 South Korea
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- Huiyeong Ju
- Department of Chemistry and Research Institute of Natural Science Gyeongsang National University Jinju 52828 South Korea
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- Seulgi Kim
- Department of Chemistry and Research Institute of Natural Science Gyeongsang National University Jinju 52828 South Korea
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- Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Science Gyeongsang National University Jinju 52828 South Korea
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- Yoichi Habata
- Department of Chemistry Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
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- Shim Sung Lee
- Department of Chemistry and Research Institute of Natural Science Gyeongsang National University Jinju 52828 South Korea
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Description
<jats:title>Abstract</jats:title><jats:p>A one‐pot reaction of the A1/A2‐thiopyridyl pillar[5]arene <jats:bold>L</jats:bold> with silver(I) trifluoroacetate in the presence of the linear dinitrile guest <jats:bold>C8</jats:bold>, [CN(CH<jats:sub>2</jats:sub>)<jats:sub><jats:italic>n</jats:italic></jats:sub>CN, <jats:italic>n=</jats:italic>8], afforded the first example of a two‐dimensional (2D) poly‐pseudo‐rotaxane {[(μ<jats:sub>4</jats:sub>‐Ag)<jats:sub>2</jats:sub>(<jats:bold>C8</jats:bold>@<jats:bold>L</jats:bold>)<jats:sub>2</jats:sub>(μ<jats:bold>‐C8</jats:bold>)](CF<jats:sub>3</jats:sub>CO<jats:sub>2</jats:sub>)<jats:sub>2</jats:sub>}<jats:sub><jats:italic>n</jats:italic></jats:sub>. Surprisingly, in this structure the <jats:bold>C8</jats:bold> guest not only threads into the pillar[5]arene unit but also crosslinks the 1D coordinative polymeric arrays. The formation of the 2D poly‐pseudo‐rotaxane is driven by an adaptive rearrangement of the components that minimizes the steric clashes not only between the threaded guests but also between the threaded and crosslinked guests where crosslinking occurs. A pathway for the formation of the 2D poly‐pseudo‐rotaxane is proposed.</jats:p>
Journal
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- Angewandte Chemie International Edition
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Angewandte Chemie International Edition 58 (33), 11296-11300, 2019-07-09
Wiley