title: Bis(2-ethyl-1H-imidazol-3-ium) tetra-chloridomercurate(II).
abstract: The crystal structure of the title compound, (C(5)H(9)N(2))(2)[HgCl(4)], consists of discrete tetra-chloridomercurate dications and discrete 2-methyl-imidazolium cations. In the complex anion, the mercury cations are coordinated by four chloride anions with distances between 2.4568 (14) and 2.4936 (15) Å in a tetra-hedral geometry. In the crystal, the cations and anions are connected by inter-molecular N-H⋯Cl inter-actions. One C atom of the cations is disordered and was refined using a split model (occupancy ratio 0.75:0.25).
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189,  People's Republic of China.
authors.forename: Run-Qiang
authors.initials: RQ
authors.lastname: Zhu