Qualitative Valence Bond Theory for Asymmetric Coordination in Tin(IV) Dithiolate Complexes

Abstract

Different modes of asymmetric coordination found for certain tin(IV) xanthate and dithiocarbamate complexes are rationalized in terms of valence-bond resonance schemes. As tin-atom lone-pairs are absent in these compounds, the observed asymmetry cannot be a consequence of lonepairlbond -pair repulsions.