Abstract
A series of mixed-ligand complexes of the formulae [Co (tyr)(gly)(H
2
O)
2
], [Co(tyr)(ala)(H
2
O)
2
], [Co(tyr)(thr)(H
2
O)
2
], [Co(tyr)(met)(H
2
O)
2
],[Ni(tyr)(gly)(H
2
O)
2
], [Ni(tyr)(ala) (H
2
O)
2
] and [Ni(tyr)(thr)(H
2
O)
2
], where tyr = L-tyrosine, gly = glycine, ala = alanine, thr = threonine, met = L-methionine has been prepared and characterised on the basis of elemental analyses, spectroscopic, thermal analysis and X-ray powder diffraction data. An octahedral structure has been proposed for all of the prepared complexes. The thermal behaviour of the complexes has been studied before and after γ-irradiation.