The highest eleven-connected multidimensional framework constructed by α-metatungstate clusters and transition metal complexes

► The [H2W12O40]6− cluster is coordinate bonded to eleven AgI ions. ► Only by Ag(1) ions and [H2W12O40]6 − clusters form the 3D framework. ► Only by Ag(2) ions and [H2W12O40]6 − units form the 2D layers. ► The whole structure contains two motifs, a 3D framework and a 2D layer.