K. Leblanc et al., Synthesis and ionic properties of nematic compounds bearing an ether-crownmoiety: an NMR approach, CHEM COMMUN, (14), 2000, pp. 1291-1292
Thermotropic ionic nematics with moderate transition temperatures are obtai
ned by dissolving alkali metal salts within nematogens bearing a crown ethe
r moiety; in these media, the ions show a significant 'apparent ionic order
' as measured by quadrupolar NMR spectroscopy.