Propane-1,2-diaminium bis-(pyridine-2,6-dicarboxyl-ato-κ 3 O 2,N,O 6)mercurate(II) dihydrate

Abstract

In the title compound, (C 3H 12N 2)[Hg(C 7H 3NO 4) 2]· 2H 2O, the Hg II ion is coordinated by four O and two N atoms of two pyridine-2,6-dicarboxyl-ate (pydc) ligands in a distorted octa-hedral environment. The structure contains two uncoordinated water mol-ecules. In the crystal, N - H⋯O, O - H⋯O and weak C - H⋯O hydrogen bonds and π-π stacking inter-actions between the pyridine rings of the pydc ligands, with a centroid-centroid distance of 3.4582 (18) Å, stabilize the structure. © Agah et al. 2011.