title: catena-Poly[[bis-(pyrazine-2-carbox-amide)mercury(II)]-di-μ-chlorido].
abstract: In the polymeric title compound, [HgCl(2)(C(5)H(5)N(3)O)(2)](n), the Hg(II) atom (site symmetry ) adopts a distorted trans-HgN(2)Cl(4) octa-hedral coordination geometry. In the crystal, adjacent mercury ions are bridged by pairs of chloride ions, generating infinite [100] chains, and N-H⋯O and N-H⋯(N,N) hydrogen bonds help to consolidate the packing.
authors.affiliation: Department of Chemistry, Shahid Beheshti University, G.C., Evin, Tehran 1983963113, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Azhdari Tehrani
authors.forename: Bahareh
authors.initials: B
authors.lastname: Mir Mohammad Sadegh
authors.forename: Hamid Reza
authors.initials: HR
authors.lastname: Khavasi