Issue 19, 1995

Ag+ Ion-selective lariat ethers: high pressure syntheses and cation recognition properties

Abstract

A new series of lariat ethers have been prepared by a high pressure SNAr reaction, in which various heteroaromatics are directly connected to the nitrogens of 12-, 15- and 18-membered aza-crown ethers. Liquid membrane transport studies demonstrated that lariat ethers having thiazole, oxazole, pyrazine and pyridazine rings on their sidearms exhibited excellent Ag+ ion selectivity. 13C NMR binding experiments revealed that these lariat ethers selectively formed encapsulated Ag+ complexes in a different fashion from that of double armed crown ethers. Cooperative action between the heteroaromatic sidearm and the aza-crown ring afforded unique cation recognition.

Article information

Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1995, 2497-2502

Ag+ Ion-selective lariat ethers: high pressure syntheses and cation recognition properties

K. Matsumoto, M. Hashimoto, M. Toda and H. Tsukube, J. Chem. Soc., Perkin Trans. 1, 1995, 2497 DOI: 10.1039/P19950002497

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