Binuclear diorganotin(IV) complexes with bis(O,O′-4-acyl-5-pyrazolonato) bis(bidentate) ligands

► Diorganotin(IV) bis(acylpyrazolonates) are binuclear compounds. ► The geometry on tin atoms is trans-octahedral in the solid state. ► The polymethylene chain length of ligands influences the geometry on tin atoms in solution.