Structural Consequences of an Extreme Difference between the Trans Influence of the Donor Atoms in a Palladacycle

The (piperidinomethyl)­silylmethyl group in the palladacycles presented here offers one of the largest differences between the trans influence of both donor atoms present. This allows studying distortions of the coordinated 1,5-cyclooctadiene or cyclopentadienyl (Cp) ligands. In the latter case, a strong distortion toward η3-Cp is detected.