1.D.36 The Oligobornene Ion Channel (Oligobornene) Family
Trimeric oligonorbornenes with hammock-like crown ether pendants 3 b and 3 c were impregnated in egg yolk phosphatidylcholine liposomesand proved to function as artificial ion channels. Oligomer 3 c, having a polar hydroxy end group, exhibited the highest sodium ion transport efficiency. The orientation of the crown ether moieties in these oligomers may be critical for ion transport (Lin et al. 2013).