Complexes of adrenaline with some divalent transition-metal ions

A thermoanalytical study of different adrenaline coordination compounds with some divalent transition-metal ions such as Co(II), Ni(II) and Cu(II) is reported. The solid precipitated compounds were characterized by elemental analysis and by thermogravimetric analysis also coupled to FTIR spectroscopy to analyze the evolved gases and make consistent the proposed decomposition steps. Several complexes were obtained with the metal/ligand molar ratios of 1:2, 1:4 and 1:6