K. Kavallieratos et al., Novel dual-host approach in ion pair extraction: a simple tripodal nitratehost facilitates CsNO3 transfer to 1,2-dichloroethane by a large crown ether, CHEM COMMUN, (3), 2000, pp. 187-188
The readily available benzene-1,3,5-tricarboxamide 1 enhances CsNO3 extract
ion by tetrabenzo-24-crown-8 via hydrogen bonding to the nitrate anion, as
demonstrated by NMR and electrospray ionization mass spectrometry.