Metallosupramolecules of pillar[5]-bis-trithiacrown including a mercury(ii) iodide ion-triplet complex

Abstract

A combination of pillar[5]-bis-trithiacrown (L) and mercury(II) halides afforded a monomer complex (Cl⁻-form), a 1-D coordination polymer (Br⁻-form) and a supramolecular ion-triplet complex [(I·Hg·I)@L] (I⁻-form). In the ion-triplet complex, the host encapsulates the (I⁻–Hg²⁺–I⁻) entity via Hg²⁺⋯π and C–H⋯I⁻ interactions, reflecting geometrical complementarity.