catena-Poly[[[diiodidomercury(II)]-μ-N,N′-di-3-pyridylpyridine-2,6-dicarboxamide] dimethylformamide solvate]

In the title complex, {[HgI2(C17H13N5O2)]·C3H7NO}n, the Hg atom is coordinated by two I atoms and two N atoms from two different ligands in a distorted tetrahedral environment. Hg atoms are bridged by N,N′-di-3-pyridylpyridine-2,6-dicarboxamide ligands, forming a helical chain running along the a axis