Acta Cryst. (2002). E58, i68-i69  [ doi:10.1107/S1600536802011145 ]

Ammonium mercury(II) dichloride nitrate, (NH₄)₂HgCl₂(NO₃)₂

P. Nockemann and G. Meyer

Abstract: The title compound, (NH₄)₂HgCl₂(NO₃)₂, is a double salt of HgCl₂ and NH₄NO₃ and can also be written as `HgCl₂·2NH₄NO₃'. The structure contains HgCl₂ units which are connected by nitrate groups, through long links of ca. 2.90 Å, to give chains running along [010]. All atoms apart from the two oxygen atoms are located on a mirror plane perpendicular to the b axis. The coordination around mercury is a distorted hexagonal bipyramid.

Online 12 July 2002

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