An aurophilicity-determined 3-D bimetallic coordination polymer: using [Au(CN)(2)](-) to increase structural dimensionality through gold center dot center dot center dot gold bonds in (tmeda)Cu[Au(CN)(2)](2)

A coordination polymer with the [Au(CN)(2)](-) building block has been prep ared and it exhibits weak Au(I)-mediated ferromagnetic interactions; the st ructure illustrates that aurophilicity is a powerful tool to increase dimen sionality, generating a three-dimensional system from a 1-D polymer.