Acta Cryst. (2005). E61, i9-i11  [ doi:10.1107/S1600536804034105 ]

Reinvestigation of Hg₂GeSe₄ based on single-crystal data

Y. Dong, S. Kim and H. Yun

Abstract: Dimercury(II) germanium(IV) tetraselenide, Hg₂GeSe₄, adopts a cation-deficient diamond-like structure. It crystallizes in space group I of the tetragonal system. The structure consists of tetrahedral [HgSe₄] and [GeSe₄] groups. These groups are interconnected by sharing common corners. The previous structure report on Hg₂GeSe₄ based on powder diffraction data [Parasyuk et al., (2003). J. Alloys Compd, 351, 135-144] is comparable with our results except for the absolute configuration determination. In the asymmetric unit, the site symmetries of the Hg and Ge atoms are .

Online 8 January 2005

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