Discrete and extended supersandwich structures based on weak interactions between phosphorus and mercury.

Supersized mercury: Adducts with polymeric (left) or discrete supersandwich structures (right) form from mixtures of the trinuclear mercury complex [(o-C(6)F(4)Hg)(3)] (A) with the triple-decker complex [(CpMo)(2)(μ-η(6):η(6)-P(6))] (B) in the solid state. This arrangement arises from P···Hg interactions between opposing atoms of the P(6) units and the Hg(3) units (see picture; P-purple, Hg-orange, F-green, Mo-red, C-gray).