Figure 1 A view of the molecular building block (MBB) for the title compound, with labels and 50% probability displacement ellipsoids for non-H atoms. A twofold rotation axis extends through the polymeric chain parallel to the N4-C14 bond (and coincident with the a axis) and relates atoms by symmetry. For clarity of the MBB, dimethylcarbamate molecules attached to the Zn2 metal center have been removed. Atom labels containing asterisks indicate symmetry equivalent atoms.  [article HTML]