The Molecular Recognition of Amines with Calix[6]arene: Conclusive X-ray and NMR Evidence for Endo and Exo Complex Formation between Calix[6]arene and Amines

Young Ju Lee Korea Basic Science Institute, Gwangju Center, Gwangju, 500-757, South Korea

Ki Deok Park Korea Basic Science Institute, Gwangju Center, Gwangju, 500-757, South Korea

Hyoung Min Yeo Department of Chemistry, Chonnam National University, Gwangju, 500-757, South Korea

Seung Whan Ko Department of Chemistry, Chonnam National University, Gwangju, 500-757, South Korea

Byung Ju Ryu Department of Chemistry, Chonnam National University, Gwangju, 500-757, South Korea

Kye Chun Nam Department of Chemistry, Chonnam National University, Gwangju, 500-757, South KoreaCorrespondence[email protected]

Abstract

Calix[6]arene formed an endo-complex with piperidine and its inclusion properties were investigated by NMR spectroscopy and X-ray crystallography. Especially, the DOSY spectrum showed that piperidine formed a unique complex with calix[6]arene.

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Acknowledgements

The authors are grateful to Professor S. S. Lee and Mr J. B. Suh at Gyeongsang National University and Professor M. S. Lah at Hanyang University for X-ray crystallography analysis. Korea Basic Science Institute, S. Korea is acknowledged for financial support (KBSI-2006-N25053).

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The Molecular Recognition of Amines with Calix[6]arene: Conclusive X-ray and NMR Evidence for Endo and Exo Complex Formation between Calix[6]arene and Amines

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The Molecular Recognition of Amines with Calix[6]arene: Conclusive X-ray and NMR Evidence for Endo and Exo Complex Formation between Calix[6]arene and Amines

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