A water-soluble nanometer-scale metallocapped polyrotaxane has been prepared by the inclusion complexation of azo-calixarenes with metallo-bridged bis(β-CD)s, displaying highly selective binding for Ca2+.
![Graphical abstract: A metallo-capped polyrotaxane containing calix[4]arenes and cyclodextrins and its highly selective binding for Ca2+](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=B409356A&imageInfo.ImageIdentifier.Year=2004)
Y. Liu, H. Wang, H. Zhang and P. Liang, Chem. Commun., 2004, 2266 DOI: 10.1039/B409356A
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