Dibromidobis(pyrazine-2-carboxylic acid-κN4)mercury(II) dihydrate

Abstract
The asymmetric unit of the title compound, [HgBr2(C5H4N2O2)2]·2H2O, contains one half-mol­ecule and one water mol­ecule. The HgII ion, lying on a twofold rotation axis, is four-coordinated by two N atoms of pyrazine-2-carboxylic acid ligands and two bromide ions, forming a highly distorted tetrahedral geometry. In the crystal structure, inter­molecular O—H⋯O and O—H⋯N hydrogen bonds link the mol­ecules.