A new series of complexes of the type cis-PtL2X2 [where L is a monodentate AQ-Y(CH2)nNH2 and L2 is a bidentate AQ-Y(CH2)nNH(CH2)2NH2; AQ = anthraquinone, X = Cl, I, Y = NH, O] in which anthraquinone intercalators are tethered to the cis-PtCl2 unit via an (aminoalkyl)amino, (oxyalkyl)amino, or polyethylene glycol (aminoethyl)amino linker chains was prepared and screened in vitro against P388 leukemia