Calix (aza??) crowns as potential ionophores for divalent and trivalent cations
R Ostaszewski, TW Stevens, W Verboom…
Index: Ostaszewski, Ryszard; Stevens, Tieme W.; Verboom, Willem; Reinhoudt, David N.; Kaspersen, Frans M. Recueil des Travaux Chimiques des Pays-Bas, 1991 , vol. 110, # 6 p. 294 - 298
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Citation Number: 54
Abstract
Abstract A series of calix (aza-) crowns 6a-f and 11a, b has been prepared by reaction of either calix dimethyl ester 4 or calix diacid dichloride 10 with an appropriate diamine. The complexation with both di-and trivalent cations has been qualitatively studied using fast- atom bombardment mass spectrometry.