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In this thesis a new derivative of a ligand, Tris-(2,3-Dihydroxybenzene)-triaminoguanidiniumchloride ([H6(OH)3L]Cl, 1), was synthesised. Besides this, the coordination sites of the ligand [H6Br3L]Cl and [H6Br3(OMe)3L]Cl were selectively blocked with [MCl2(PR3)2] (M=Pt2+, Pd2+ und R=Et, Ph) (2 to 7). A second X-Ray measurement of 2 allowed the characterisation of a side product of the selective blocking from [H6Br3L]Cl with [PtCl2(PPh3)2]. In the two complexes 6 and 7, a triazol fomation was observed for the first time. Starting with the synthesised complex 5, heteronuclear complexes with CdCl2·2H2O and ZnCl2 were obtained (8 to 10). Furthermore the first heteronuclear copper complex was synthesised as [{Cu2(µ-OCH3){Pt(PPh3)}(Br3(OMe)3L)}2] ·12 EtOH· 4H2O(11). Besides those complexes various coordination oligomers (12 to 17) were obtained in reactions with other metal salts (EuCl3, GdCl3, Ga(acac)3, SnCl2 and CdCl2). One of this oligomer (17) was not synthesised in a solvent. Instead of this no solvent at all was used and the very first mechanochemicaly sythesised complex based on a derivative of [H6L]Cl was synthesised in the group of I. M. Oppel.