On the relative stability of self-assembled metallosupramolecular subphthalocyanine capsules determined by ESI-Q-TOF tandem mass spectrometry.

A comparative study of the relative stability of subphthalocyanine metallosupramolecular capsules bearing different metals and ligands has been carried out by electrospray ionization quadrupole time-of-flight tandem mass spectrometry experiments. The results highlight the trends in the strength of metal-nitrogen bonds as well as the 'trans effect' of certain ligands.