Abstract The mass spectrometric behaviour of four new macrocyclic compounds, all containing the 1, 3, 5-triazine moiety, was studied with the aid of different ionization methods and mass-analysed ion kinetic energy Spectrometry. Extensive fragmentation of the oligoethylene glycol side-chains is observed, with the usual loss of C 2 H 4 O units. The favoured cleavage of the ethereal bond nearest to the etherocyclic ring gives rise to both ...
