A 3D coordination framework with an unusual 1D inorganic chain based on the Lindqvist-type [Hg6Br19]7− anion

Two new mercury(II) complexes [Hg(TDMPT)Cl2] (1) and [Hg37(TDMPT)12Br74] (2) (TDMPT = 2,4,6-tris(3,5-dimethylpyrazolyl)-1,3,5-triazine) have been prepared and characterized by X-ray structural analysis. Mercury(II) complex 1 is a mononuclear coordination compound. Meanwhile, mercury(II) complex 2 is the first example of the 3D coordination polymer with a 1D inorganic chain based on the Lindqvist-type [Hg6Br19]7− anion as building blocks. Furthermore, the bromide anions act as terminal, μ2- and μ6-bridge ligands.

Graphical AbstractThe first example of the 3D coordination polymer with a 1D inorganic chain based on the Lindqvist-type [Hg6Br19]7− anion as a building block has been reported.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► The Lindqvist-type [Hg6Br19]7- anion as building blocks. ► A three dimensional metal-organic framework with one dimensional inorganic chain. ► The TDMPT ligand adopts a novel coordination mode, namely, a tetradentate with a terpyridine-like tridentate and a monodentate.