Octahedral Coordination Compounds of the Ni, Pd, Pt Triad

Aiming high: The coordination of the tin ligand stanna-closo-dodecaborate at Ni, Pd, and Pt results in the formation of compounds with high negative charges. These complexes contain metal centers with high coordination numbers and in high formal oxidation states. In the case of the platinum derivative, a far upfield chemical shift in the 195Pt NMR spectrum (δ=−7724 ppm) was observed.