ausblenden:
Schlagwörter:
Copper (II); Schiff-base; Stability; Crystal structure
Zusammenfassung:
Studies of the stability of a ligand derived from L-glutamic acid and
ortho-vanillin and its new [Cu4] complex are presented. The [Cu4] complex contains a heterocubane [CuII4O4] core and pendant carboxylic groups increasing its solubility in water, also under basic conditions. The stability of the complex in different solvents is confirmed with ESI-MS studies and such experiments as successful recrystallization. The complex is stable also under physiological conditions whereas the ligand is partly decomposed to L-glutamic acid and ortho-vanillin.