Versatile Formation of [2]Catenane and [2]Pseudorotaxane Structures; Threading and Noncovalent Stoppering by a Self-Assembled Macrocycle
作者:Choon Woo Lim、Shigeru Sakamoto、Kentaro Yamaguchi、Jong-In Hong
DOI:10.1021/ol036127l
日期:2004.4.1
A self-assembled dimeric macrocycle between 4,4'-bis(4-pyridylmethoxy)biphenyl (L) and (en)Pd(NO3)(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.