Amminemercury(II) Selenite

The title compound {amminemercury(II) trioxoselenate(IV), [HgNH₃SeO₃} has a structure comprising of corrugated edge-sharing chains of HgNO₅ octahedra and SeO₃ pyramids. The chains are apparently held in position by hydrogen bonds. The octahedra are 2 + 4 distorted. The selenite group exhibits one significantly differing Se-O bond length involving an O atom coordinated to three Hg^II ions.

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