The principle of intramolecular coordination in complex chemistry is of great importance with regards to synthesis, stability and reactivity not only for transition metals, but also for organometal compounds of the main groups. This mechanism favours the formation of metalla heterocycles including the basic structure [M]D-C by reductive cyclometallation and oxidative cycloaddition by means of chelating ligands C-D with D being donor group. The present studies deal with the synthesis and characterisation of ligand systems with -Sn(Cl)-[C]-PPh2 as the basic structure, [C] referring to a bridging group, as well as their reaction with transition metal halides and their -halide complexes. The results gave evidence that the type of bridging group strongly influences the reaction mechanism. Thus, three distinct reaction mechanisms could be elucidated, depending on which bridging group was employed: First, Pd(II) catalysed protolysis of Sn-C-bonds. Second, the formation of M-Cl... Sn interactions, M referring to the transition metals Pd, Pt, Rh. Third, the formation of transition metalcarbon bonds by loosing the organotin group and yielding metallacycles. In addition, a lot of these compounds have been characterized by means of crystal structure analysis.