Cation complexing properties of synthetic macrocyclic polyether-diester ligands containing the pyridine subcyclic unit
作者:J. S. Bradshaw、G. E. Maas、J. D. Lamb、R. M. Izatt、J. J. Christensen
DOI:10.1021/ja00522a004
日期:1980.1
Ten new macrocyclic polyether-diester compounds containing a pyridine subcyclic unit substituted in the 4 position with chloro or methoxy groups have been prepared. These compounds along with their unsubstituted pyridine analogues form strong complexes with alkylammonium and some metal cations. Complexation with alkylammonium and potassium cations was accompanied by significant chemical-shift changes