Versatile formation of [2]catenane and [2]pseudorotaxane structures; threading and noncovalent stoppering by a self-assembled macrocycle

Choon Woo Lim; Shigeru Sakamoto; Kentaro Yamaguchi; Jong-In Hong

doi:10.1021/ol036127l

Versatile formation of [2]catenane and [2]pseudorotaxane structures; threading and noncovalent stoppering by a self-assembled macrocycle

Org Lett. 2004 Apr 1;6(7):1079-82. doi: 10.1021/ol036127l.

Authors

Choon Woo Lim¹, Shigeru Sakamoto, Kentaro Yamaguchi, Jong-In Hong

Affiliation

¹ Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea.

PMID: 15040727
DOI: 10.1021/ol036127l

Abstract

A self-assembled dimeric macrocycle between 4,4'-bis(4-pyridylmethoxy)biphenyl (L) and (en)Pd(NO(3))(2) was constructed, and its interactions with cyclodextrins of different cavity size resulted in the formation of [2]catenane and [2]pseudorotaxane systems, respectively. The structures were identified by 1D and 2D NMR spectroscopy and cold spray ionization mass (CSI-MS) spectrometry.