Chemistry Letters p. 2045 - 2048 (1993)
Update date:2022-08-04
Topics:
Ohseto, Fumio
Shinkai, Seiji
A biscalix<4>arene linked with two poly(oxyethylene)groups was synthesized.It was spectrometrically detected by temperature-dependent 1H-NMR spectroscopy that alkali metal cations such as Na+ or K+ really "vibrates" between two metal-binding sites in the NMR time-scale.
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