[3]Rotaxane synthesized via covalent bond formation can recognize cations forming a sandwich structure

Literature Information

Publication Date 2004-12-15
DOI 10.1039/B413715A
Impact Factor 6.222
Authors

Yoshinobu Nagawa, Jun-ichi Suga, Emiko Koyama, Masatoshi Kanesato


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Abstract

A novel [3]rotaxane composed of two 25-membered crownophanes and one axle molecule having two anthryl end groups was successfully synthesized via covalent bond formation followed by aminolysis, and can incorporate caesium ion into the space between the two macrocycles as a 1 ∶ 1 sandwich-type complex, whereas it makes a 1 ∶ 2 complex with lithium ion.

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