The combinations of R3Sn+-cations (R = Ph, Bn) and/or metal complex cations of the type [M'(L)m]2+ (M' = Ni, Cu, Zn; L = en, tren, etc.; m = 1, 2) with MO42--anions (M = Cr, Mo, W) result in compounds of different classes. Coordination compounds of the type [M'(L)mMO4] were obtained through the conversion of [M'MO4] with ligands L. Coordination polymers which belong to the class of organotin oxo metallates emerge by combining MO42--anions and R3Sn+-cations. The networks which are created show regularly recurring topologies. When the organo ligand on the R3Sn+-cation is amended, networks are found with for organotin oxo metallates partly new topologies. [M'(L)m]2+-cations are added to the network through the formal breakdown of organotin oxo metallates. Depending on the [M'(L)m]2+-cations arise heterotrimetallic coordination polymers with different network structures.